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Compare feasibility, prioritization, and structure in AI-generated plans.

Snapshot 2026-W42 Results as of 2026-10-16

6 models answered the same 16 tasks. The same judges (Claude Opus 5.5 / GPT-6.1 Sol / Gemini 3.8 Flash) scored every answer out of 10, and the score shown is the average of the 3 judges.

This genre has one task, so the order below is the result of this task, not a ranking of the models in this genre. The overall ranking uses all 16 tasks.

At a glance

Results for this task

Six-Day Cafe Refit Against a Fixed Inspection

Rank Model Average (out of 10)
1 Claude Opus 5.5 9.52
2 Claude Sonnet 5.5 9.46
3 GPT-6.1 Sol 9.41
4 Gemini 3.8 Flash 8.66
5 Gemini 3.5 Flash-Lite 5.62
6 GPT-6 Luna 4.12
Score colors ≥ 9 8–9 7–8 6–7 5–6 < 5

Gap between the highest and lowest average: 5.40 points.

The task

Six-Day Cafe Refit Against a Fixed Inspection

Instructions

You are the project coordinator for Cafe Lumen's refit. Using the facts in the context, write the plan the owner will approve.

Your plan must:

  1. State whether the current arrangement can reopen on Sunday, and name the specific constraint that decides it.
  2. For each of the four options, give its total cost to the owner in euros and say whether it makes a Sunday reopening achievable.
  3. Recommend one option and give a Monday-to-Saturday schedule that shows on which day or days each task A-F takes place.
  4. List exactly three risks to the recommended plan, each with an early warning sign and a concrete fallback, stating what the fallback costs.
  5. Use 500-750 words.
Material given with the task

Cafe Lumen closes Monday (day 1) to Saturday (day 6) for a refit and plans to reopen on Sunday morning. Every task takes whole days. A task can start only on a day after all of its predecessors have finished.

  • A. Strip the old counter and fittings: 1 day, carpenter.
  • B. Rewiring: 2 consecutive days, electrician, after A. The electrical firm's only electrician is unavailable on Tuesday.
  • C. Plumbing rough-in: 1 day, plumber, after A. It may share a day with B.
  • D. Install the new counter: 2 consecutive days, the same carpenter, after both B and C.
  • E. Paint the walls: 1 day, painter, after C (plumbing patches must dry overnight). Painting cannot happen on a day when D is in progress (dust). It may share a day with B.
  • F. Final clean and health inspection: the inspector is booked for Saturday. A-E must all be finished before Saturday and nothing else happens on Saturday. The inspector's next free slot after that is the following Monday.
    The cafe normally trades on Sundays and Mondays; every extra day closed costs EUR 900 in lost contribution. The owner has approved a contingency budget of EUR 1,500.
    Options offered by the contractors:
  1. The electrical firm sends a second electrician on Tuesday: surcharge EUR 1,100.
  2. A second carpenter joins so that D takes 1 day instead of 2: EUR 1,300.
  3. The painter works overtime so that painting may happen in the evening of a counter-installation day: EUR 300.
  4. Keep the current crew and extend the closure until the inspection can take place.
How the judges were told to score
Requirement checklist (completeness, except (5): clarity, and over 825 words also specificity -1). (1) feasibility verdict with the deciding constraint; (2) cost and Sunday-feasibility for all four options; (3) one recommendation plus a Monday-Saturday schedule covering A-F; (4) exactly three risks, each with warning sign, fallback and fallback cost; (5) 500-750 words. Answer key (compare, do not re-derive): the current arrangement cannot reopen on Sunday. Because the electrician is off on Tuesday, B can only run Wed-Thu, so D runs Fri-Sat and collides with the Saturday inspection. Option 1 (EUR 1,100): feasible, and it has exactly one valid schedule: Mon A; Tue B (day 1) and C; Wed B (day 2) and E; Thu-Fri D; Sat F. Option 2 (EUR 1,300): feasible (for example Mon A, Tue C, Wed-Thu B, Wed or Thu E, Fri D, Sat F) but costs EUR 200 more. Option 3 (EUR 300, or EUR 2,100 if the closure extension it still needs is added; either is correct): does NOT fix the problem, because painting is not on the critical chain A-B-D-F. Option 4: the inspection moves to the following Monday, so the cafe loses Sunday and Monday = EUR 1,800, over the EUR 1,500 budget. Correct recommendation: Option 1, leaving EUR 400 of contingency, which a strong answer uses when costing fallbacks. Recommending Option 2: prioritization -2. Check each schedule against the context's rules as modified by the chosen option. 9+ only if the verdict, all four option costs (including EUR 1,800), the unique Option 1 schedule and the remaining EUR 400 are all correct and the risks are specific to this job (for example the Tuesday electrician not showing, plumbing patches not dry, inspection failure). Caps: recommends Option 3 or claims it solves the clash -> feasibility <= 4; Option 4 costed at EUR 900 -> prioritization <= 6; a schedule that breaks any rule -> feasibility <= 5; not exactly three risks -> completeness <= 7.

Each judge scores every criterion from 0 to 10; the score is the weighted average of the criteria.

Answers, highest average first

Judges read the English original. Translations are for reading only.

1 Claude Opus 5.5

Average (out of 10) 9.52

Cafe Lumen Refit Plan

1. Can the current arrangement reopen on Sunday?

No. The deciding constraint is that the only electrician is unavailable on Tuesday.

  • Stripping (A) takes Monday.
  • Rewiring (B) needs two days in a row, so with no electrician on Tuesday it cannot run before Wednesday–Thursday.
  • The counter (D) needs B and C finished first, so it cannot start before Friday. Two days of counter work then means Friday–Saturday.
  • Saturday is reserved for the inspection, and A–E must be finished before it. D cannot finish in time, so the Saturday inspection is lost.
  • The inspector's next slot...
Show Full Answer ▼

Cafe Lumen Refit Plan

1. Can the current arrangement reopen on Sunday?

No. The deciding constraint is that the only electrician is unavailable on Tuesday.

  • Stripping (A) takes Monday.
  • Rewiring (B) needs two days in a row, so with no electrician on Tuesday it cannot run before Wednesday–Thursday.
  • The counter (D) needs B and C finished first, so it cannot start before Friday. Two days of counter work then means Friday–Saturday.
  • Saturday is reserved for the inspection, and A–E must be finished before it. D cannot finish in time, so the Saturday inspection is lost.
  • The inspector's next slot is the following Monday.
2. The four options

| Option | Total cost to owner | Sunday reopening? |
|---|---|---|
| 1. Second electrician on Tuesday | €1,100 | Yes. B moves to Tue–Wed, so D fits Thu–Fri. |
| 2. Second carpenter (D takes 1 day) | €1,300 | Yes. B stays Wed–Thu and D fits on Friday. |
| 3. Painter overtime | €2,100 (€300 + €1,800 extra closure) | No. It only frees up painting, which is not the problem. D still runs into Saturday. |
| 4. Keep crew, extend closure | €1,800 (Sunday + Monday closed at €900 each) | No. The inspection moves to Monday, so the earliest reopening is after it passes. |

Options 3 and 4 both go over the €1,500 contingency. Assumption: the cafe cannot trade on the Monday inspection day.

3. Recommendation: Option 1, second electrician on Tuesday (€1,100)

This is the cheapest option that saves the Sunday reopening. It stays within budget and leaves €400 of contingency.

| Day | Tasks |
|---|---|
| Mon (1) | A – Strip counter and fittings (carpenter) |
| Tue (2) | B – Rewiring, day 1 (second electrician); C – Plumbing rough-in (plumber) |
| Wed (3) | B – Rewiring, day 2 (regular electrician); E – Paint walls (painter; patches dried overnight; no counter work that day) |
| Thu (4) | D – Install counter, day 1 (carpenter) |
| Fri (5) | D – Install counter, day 2 (carpenter) |
| Sat (6) | F – Final clean and health inspection only |
| Sun | Reopen |

All the rules are met:

  • B and C start only after A.
  • D starts only after both B and C.
  • E comes after C, shares a day with B (allowed), and avoids D's dusty days.
  • Saturday holds nothing but F.

There is no slack in this schedule. Each day depends on the day before.

4. Risks, early warnings and fallbacks

Risk 1: The second electrician does not turn up on Tuesday.

  • Early warning: The firm has not confirmed the electrician's name and start time by Monday noon, or nobody is on site by 9:00 on Tuesday.
  • Fallback: Switch to Option 2. B runs Wed–Thu with the regular electrician and a second carpenter installs D on Friday. C stays on Tuesday, but painting (E) moves from Wednesday to Thursday so the walls are dry before the counter goes in. The fallback costs €1,300. Make the €1,100 surcharge payable only if the electrician turns up. That way the total stays at €1,300, within budget. If the surcharge has already been paid, the total is €2,400 and the owner must approve €900 over budget. That is still cheaper than missing Sunday (€1,100 + €1,800 = €2,900).

Risk 2: The counter installation overruns or the counter arrives late.

  • Early warning: The supplier has not confirmed Thursday-morning delivery by Wednesday, or less than half the counter is fitted by the end of Thursday.
  • Fallback: Bring in a second carpenter on Friday to finish D. Book them now as a provisional standby. This costs €1,300, so the total spend is €2,400. That needs €900 above the contingency but is cheaper than the €1,800 of a Monday inspection. If no second carpenter can be found, take Option 4 and accept €1,800 in lost trading.

Risk 3: Painting cannot happen on Wednesday. The plumbing patches may still be damp, or the painter may be unavailable.

  • Early warning: The patches are still wet when tested at 8:00 on Wednesday, or the painter has not confirmed Wednesday by Tuesday afternoon.
  • Fallback: Use Option 3. The painter works an evening shift on Thursday or Friday after the counter work stops, so there is no dust clash. This costs €300, which fits inside the remaining €400. The total spend becomes €1,400.
Approval requested

Approve Option 1 (€1,100) today and confirm the electrician by Monday noon. Also authorise provisional standby bookings for a second carpenter and painter overtime, each payable only if used.

Claude Opus 5.5 9.10

This is a very strong plan that matches the answer key throughout. The verdict and its deciding constraint (no electrician on Tuesday) are correct. All four options are correctly costed: EUR 1,100, EUR 1,300, EUR 2,100 including the extension, and EUR 1,800. Option 1 is recommended with the unique valid schedule, and the remaining EUR 400 is stated and used. The three risks are specific to this job, and each has a warning sign, a fallback and a cost. The length is within the limit at 711 words. The flaws are small: one fallback adds an unneeded reason for moving painting, and two fallbacks exceed the contingency, though the answer says so openly.

Score by criterion

Feasibility

92

The Option 1 schedule matches the unique valid one: Mon A; Tue B1 and C; Wed B2 and E; Thu–Fri D; Sat F. It correctly explains why Option 3 fails and why the current arrangement collides with the Saturday inspection. The fallback schedules respect the rules, including Option 2 with E on Thursday and evening painting under Option 3. The stated reason for moving E to Thursday in Risk 1 is unnecessary but does not break any rule.

Completeness

91

Every checklist item is covered: the verdict with its constraint, the cost and Sunday feasibility of all four options, one recommendation with a Monday–Saturday schedule covering A–F, and exactly three risks, each with a warning sign, fallback and cost.

Prioritization

91

It correctly picks Option 1 as the cheapest option that saves Sunday, leaving EUR 400. Option 4 is correctly costed at EUR 1,800 and over budget. The fallbacks are weighed against the cost of missing Sunday, and Risk 3's fallback is fitted inside the EUR 400 remaining.

Specificity

90

The risks are tied to this job: the Tuesday electrician not showing, the counter overrunning, and the plumbing patches still being damp. The warning signs are concrete, such as Monday-noon confirmation and an 8:00 Wednesday moisture test, and the fallbacks carry euro figures. The suggestion to make the surcharge payable only on attendance is somewhat speculative.

Clarity

90

The structure is clear, with headed sections, tables for the options and the schedule, and an explicit approval request. At 711 words it is within the 500–750 range.

GPT-6.1 Sol 9.45

The plan correctly identifies the critical-path clash, prices all four options, and recommends the cheapest feasible solution with the exact required schedule and €400 remaining. It meets the word limit and provides exactly three job-specific risks with warnings and costed fallbacks. The main qualification is that some fallbacks depend on securing conditional payment terms and short-notice carpenter availability, which are proposed rather than confirmed.

Score by criterion

Feasibility

95

Correctly explains why Wednesday–Thursday rewiring forces the current counter installation into Saturday. All four Sunday-feasibility judgments are correct, and the recommended Monday–Saturday schedule satisfies every dependency, consecutive-day requirement, painting restriction, and inspection constraint. The fallback schedules are also consistent with the stated rules.

Completeness

100

Includes the feasibility verdict and deciding constraint, all four option costs and reopening judgments, one recommendation, a complete A–F schedule, and exactly three risks with early warnings, concrete fallbacks, and costs. Correctly includes the €1,800 closure loss and the €400 remaining contingency.

Prioritization

93

Selects Option 1 as the cheapest Sunday-saving option, explicitly preserves €400, and uses €300 painter overtime as an affordable fallback. More expensive carpenter contingencies are transparently identified as requiring additional approval, with sensible comparisons against closure losses.

Specificity

90

Provides concrete daily assignments, named resources, warning deadlines, cumulative fallback costs, and explicit approval thresholds. Risks are closely tied to this refit. Some fallback practicality remains conditional on negotiating a refundable electrician surcharge and obtaining a second carpenter at short notice; the answer acknowledges these dependencies rather than establishing them.

Clarity

94

The tables and numbered sections make the decision, schedule, and costs easy to review. The measured 711 words meet the 500–750-word requirement. Risk discussions are slightly denser than the rest, but clearly distinguish incremental costs, total spending, and budget overruns.

Gemini 3.8 Flash 10.00

Outstanding submission that meets every requirement of the prompt and rubric with rigorous precision. The critical path analysis and feasibility verdict are completely accurate, all four option costs and feasibilities are correctly calculated (including the two-day closure loss for Option 4), the schedule is the exact valid schedule for Option 1, and the risks are specific, realistic, and make thoughtful use of the remaining €400 contingency buffer.

Score by criterion

Feasibility

100

The feasibility analysis is flawless. It identifies the exact deciding constraint for the current arrangement and provides the uniquely valid schedule for Option 1, respecting all predecessor, drying, and dust constraints.

Completeness

100

All five required parts are completely answered. It covers the feasibility verdict, all four options with costs and Sunday viability, a Monday-to-Saturday schedule for A-F, exactly three risks with early warnings and costed fallbacks, and stays within the word count range.

Prioritization

100

Option 1 is correctly recommended as the lowest-cost path to Sunday reopening, rightly pointing out that it preserves €400 of contingency funds. The analysis of why Options 3 and 4 fail to solve the Sunday reopening constraint is spot-on.

Specificity

100

The risks, early warning triggers, and fallbacks are exceptionally concrete and specific to the refit tasks (e.g., electrician no-show by 9:00 Tue, plumbing patches wet on Wednesday morning, counter delivery/progress checks).

Clarity

100

The response is structured logically using clear tables and clean formatting. At 711 words, it sits comfortably within the 500–750 word limit.

2 Claude Sonnet 5.5

Average (out of 10) 9.46

Cafe Lumen Refit Plan: Reopen Sunday

1. Can the current arrangement reopen on Sunday?

No. The deciding constraint is the electrician's unavailability on Tuesday, combined with the fixed Saturday inspection.

  • A (strip) must take Monday, because everything depends on it.
  • B (rewiring) needs 2 consecutive days after A, and Tuesday is out. It therefore runs Wednesday–Thursday.
  • D (counter, 2 days) needs both B and C finished, so it can start only on Friday and would run into Saturday.
  • Saturday is reserved for the inspection, and A–E must be finished before it.
  • The inspector's next free slot is the...
Show Full Answer ▼

Cafe Lumen Refit Plan: Reopen Sunday

1. Can the current arrangement reopen on Sunday?

No. The deciding constraint is the electrician's unavailability on Tuesday, combined with the fixed Saturday inspection.

  • A (strip) must take Monday, because everything depends on it.
  • B (rewiring) needs 2 consecutive days after A, and Tuesday is out. It therefore runs Wednesday–Thursday.
  • D (counter, 2 days) needs both B and C finished, so it can start only on Friday and would run into Saturday.
  • Saturday is reserved for the inspection, and A–E must be finished before it.
  • The inspector's next free slot is the following Monday.

2. The four options

| Option | Cost to owner | Sunday reopening achievable? |
|---|---|---|
| 1. Second electrician on Tuesday | €1,100 | Yes. B runs Tue–Wed and D runs Thu–Fri. |
| 2. Second carpenter | €1,300 | Yes. B runs Wed–Thu and D takes Friday alone. |
| 3. Painter overtime | €300 surcharge, but €2,100 in practice | No. B still ends Thursday, D still needs Fri–Sat, and painting is not the bottleneck. The closure then extends as in Option 4, adding €1,800. |
| 4. Extend the closure | €1,800 | No. Inspection moves to Monday (day 8), so Sunday and Monday are both lost: 2 × €900. This exceeds the €1,500 contingency. |

3. Recommendation: Option 1 (€1,100)

Option 1 is the cheapest option that works. It leaves €400 of the €1,500 contingency unspent. Option 2 also works but costs €200 more.

| Day | Tasks |
|---|---|
| Mon (1) | A: strip the old counter and fittings |
| Tue (2) | B (day 1 of 2, second electrician) and C (plumbing rough-in) |
| Wed (3) | B (day 2 of 2) and E (paint; C finished Tuesday, so the patches have dried overnight) |
| Thu (4) | D (day 1 of 2) |
| Fri (5) | D (day 2 of 2) |
| Sat (6) | F: final clean and health inspection |
| Sun (7) | Reopen |

Every dependency is respected:

  • B and C both start after A.
  • E follows C.
  • E never overlaps D.
  • D starts only after B and C have finished.
  • Nothing else happens on Saturday.

There is no slack: Monday to Friday are fully used on the critical path A → B → D.

4. Three risks

Risk 1: The second electrician does not arrive on Tuesday.

  • Early warning: No written confirmation by Monday noon, or no electrician on site by Tuesday 9:00.
  • Fallback: Switch to Option 2 and book the second carpenter for Friday. B then runs Wed–Thu and D runs Friday.
  • Cost: €1,300 in total, which is €200 more than the plan. That is still inside the contingency, provided the Option 1 surcharge is payable only on attendance. Agree this in writing.

Risk 2: The strip-out (A) overruns Monday because of hidden damage.

  • Early warning: A is not finished by 15:00 on Monday, or the carpenter reports rot or asbestos-like material behind the counter.
  • Fallback: Replace Option 1 with Option 2. If A runs Mon–Tue, B can run Wed–Thu without a second electrician, and a second carpenter lets D finish on Friday. Decide by Monday evening.
  • Cost: €1,300 in total (€200 above plan), as long as the Option 1 surcharge has not yet been incurred. Buying both options would cost €2,400, which exceeds the budget by €900. Do not do this.

Risk 3: The plumbing patches are not dry, or the plumber slips, so painting cannot happen Wednesday.

  • Early warning: C is not finished by the end of Tuesday, or the patches are still damp on Wednesday at 8:00.
  • Fallback: Book the painter's overtime (Option 3) so that E happens in the evening of Thursday or Friday, which are counter-installation days. Painting is the only task that can move without affecting the critical path.
  • Cost: €300, bringing the total to €1,400. That is within the €1,500 contingency.

Decision requested

Approve Option 1 at €1,100. Cafe Lumen then reopens Sunday morning with no extra days closed and €400 of contingency in hand. Without a change, the closure runs to the following Tuesday and costs €1,800, which is above budget.

I will confirm the second electrician in writing on Monday morning. The cost-neutral steps are to secure the Tuesday booking, keep the second carpenter on standby, and confirm the painter's overtime rate.

Claude Opus 5.5 9.08

An excellent plan that matches the answer key throughout. The verdict is correct and names the Tuesday electrician constraint. All four options are correctly costed, including EUR 1,800 for Option 4 and the effective EUR 2,100 for Option 3. Option 1 is recommended with the unique valid schedule, and the EUR 400 of remaining contingency is used in costing the fallbacks. All three risks are job-specific and have workable fallbacks. Minor weaknesses: the asbestos warning sign in Risk 2 is not really addressed by its fallback, and some cost caveats are a little dense.

Score by criterion

Feasibility

92

The schedule exactly matches the unique Option 1 schedule: Mon A, Tue B and C, Wed B and E, Thu-Fri D, Sat F. Each fallback was checked against the rules and is valid: Option 2 after an electrician no-show, A over two days with Option 2, and overtime painting on Thursday or Friday evening. A small weakness is that Risk 2 cites asbestos-like material, which the fallback would not realistically resolve.

Completeness

92

Every checklist item is present. There is a verdict with its deciding constraint, cost and Sunday feasibility for all four options, one recommendation with a full A-F schedule, and exactly three risks, each with a warning sign, a fallback and a cost. Length is 682 words, inside the 500-750 range.

Prioritization

91

Option 1 is correctly chosen as the cheapest option that works. The answer notes Option 2 costs EUR 200 more, rejects Option 3 because painting is off the critical path, and shows Option 4 at EUR 1,800 exceeds the budget. It also warns against buying both options.

Specificity

90

All costs are in concrete euros and every fallback is costed against the EUR 400 remaining. Warning signs carry specific times, such as Monday noon and Tuesday 9:00. The risks are tied to this job: the electrician not showing, the strip-out overrunning, and the plumbing patches not drying.

Clarity

86

Tables and headings are clear, the logic chain is easy to follow, and the answer ends with a concise decision request. The cost caveats in Risks 1 and 2 are slightly convoluted, and the word count is within the limit.

GPT-6.1 Sol 9.30

The plan correctly identifies the scheduling bottleneck, costs all four options, and recommends the cheapest feasible solution with the exact valid Option 1 schedule. It meets the word limit and provides exactly three detailed risks. The main weakness is that the strip-out fallback assumes hidden damage can be resolved with only one additional day and no additional remediation cost, which is particularly uncertain for suspected asbestos.

Score by criterion

Feasibility

88

The baseline verdict, option feasibility assessments, and recommended schedule are correct and respect every dependency and Saturday restriction. The electrician and painting fallbacks are workable under their stated conditions. However, the strip-out fallback only protects reopening if the overrun is limited to one day; suspected asbestos or substantial hidden damage is not reliably addressed by adding a carpenter to the later counter installation.

Completeness

100

Includes the deciding constraint, costs and Sunday feasibility for all four options, one recommendation, a complete Monday-to-Saturday A–F schedule, and exactly three risks, each with a warning, fallback, and stated cost.

Prioritization

95

Correctly selects Option 1 at €1,100, explains its €200 advantage over Option 2, and preserves €400 of contingency. Correctly counts both lost trading days under Option 4 and explicitly distinguishes replacement-option costs from buying both options. Conditional payment arrangements are appropriately identified rather than silently assumed.

Specificity

90

Provides exact task days, contractor assignments, warning times, fallback bookings, and euro totals. The risks are specific to this refit. The hidden-damage fallback is less fully grounded because its quoted total excludes any unknown investigation or remediation costs.

Clarity

96

The 682-word response meets the required length and is easy for an owner to review. Tables clearly separate option costs from the working schedule, and the risk entries consistently distinguish warnings, actions, and costs. Minor repetition does not materially impair readability.

Gemini 3.8 Flash 10.00

This response is an exemplary execution of the task. It identifies the critical path and deciding constraint with total precision, correctly calculates costs for all four options (including the EUR 1,800 cost for extending closure), selects Option 1 with the exact valid schedule, and presents three highly relevant, job-specific risks with actionable fallbacks and costings within the contingency reserve. The word count is also perfectly within the specified limit.

Score by criterion

Feasibility

100

Flawless scheduling and operational logic. The answer correctly maps all predecessor constraints, the unique valid sequence for Option 1, and viable fallbacks that respect project dependencies.

Completeness

100

Every prompt requirement is fully satisfied: the verdict with deciding constraint, complete evaluation of all four options, justified recommendation with Monday-to-Saturday schedule, exactly three specific risks with warning signs and fallback costs, and appropriate length.

Prioritization

100

Correctly recommends Option 1 as the lowest-cost viable solution, highlights the EUR 400 contingency buffer, and leverages that buffer effectively when structuring fallback scenarios.

Specificity

100

Highly specific operational details throughout, including exact dates, trade roles, milestone inspection constraints, realistic warning times, and precise cost breakdowns.

Clarity

100

Exceptionally well-structured and concise. Tables and clear headings make the plan immediately actionable for the owner, and the length (682 words) falls squarely within the 500-750 word target.

3 GPT-6.1 Sol

Average (out of 10) 9.41

Cafe Lumen: Refit Approval Plan

Decision and critical constraint

The current arrangement cannot support a Sunday reopening. A finishes Monday. Because the electrician is unavailable Tuesday, B must run Wednesday–Thursday. D must then run Friday–Saturday. The decisive constraint is the fixed Saturday inspection: all work A–E must finish before Saturday, and Saturday is reserved exclusively for F. Painting can fit Wednesday, but that does not resolve the counter-installation bottleneck.

Approve Option 1, Tuesday electrical cover, for EUR 1,100. It preserves the inspection and Sunday reopening, w...

Show Full Answer ▼

Cafe Lumen: Refit Approval Plan

Decision and critical constraint

The current arrangement cannot support a Sunday reopening. A finishes Monday. Because the electrician is unavailable Tuesday, B must run Wednesday–Thursday. D must then run Friday–Saturday. The decisive constraint is the fixed Saturday inspection: all work A–E must finish before Saturday, and Saturday is reserved exclusively for F. Painting can fit Wednesday, but that does not resolve the counter-installation bottleneck.

Approve Option 1, Tuesday electrical cover, for EUR 1,100. It preserves the inspection and Sunday reopening, while leaving EUR 400 of the approved EUR 1,500 contingency budget unused.

Options and owner costs

Costs below include the stated surcharge and additional lost contribution, but exclude ordinary refit costs, which were not supplied.

| Option | Total additional owner cost | Sunday reopening achievable? |
|---|---:|---|
| 1. Second electrician Tuesday | EUR 1,100 | Yes. B runs Tuesday–Wednesday; D runs Thursday–Friday. |
| 2. Second carpenter; D shortened to one day | EUR 1,300 | Yes. B runs Wednesday–Thursday; D finishes Friday. E runs Wednesday. |
| 3. Evening painting during counter installation | EUR 2,100 under the extension assumption below | No. Painting flexibility does not bring the two-day D forward. Cost comprises EUR 300 overtime plus EUR 1,800 lost contribution. |
| 4. Current crew; extend closure | EUR 1,800 under the extension assumption below | No. Sunday and Monday trading are lost before reopening Tuesday. |

Extension qualification: The EUR 2,100 and EUR 1,800 totals assume that cancelling Saturday’s inspection also releases Saturday for counter installation, allowing D on Friday–Saturday and F the following Monday. If “nothing else happens on Saturday” remains an absolute prohibition even after cancellation, these are not achievable totals: D must instead run Sunday–Monday, making Monday inspection impossible. The next inspection date and total closure cost are then unspecified. Obtain explicit clarification before approving either extension option.

Option 1 is cheaper than Option 2 and avoids this extension uncertainty.

Approved Monday-to-Saturday schedule

| Day | Tasks and coordination |
|---|---|
| Monday | A: Carpenter strips the old counter and fittings. Confirm Tuesday electrical cover, materials and inspector attendance. |
| Tuesday | B, day 1: Second electrician performs rewiring. C: Plumber completes rough-in concurrently. Plumbing patches dry overnight. |
| Wednesday | B, day 2: Regular electrician completes rewiring, with a documented handover from Tuesday. E: Painter paints after C, concurrently with B. |
| Thursday | D, day 1: Carpenter installs the counter, after both B and C have finished. |
| Friday | D, day 2: Counter installation finishes. Verify completion of A–E and assemble inspection records. |
| Saturday | F only: Final clean and health inspection. No installation, painting or other refit work. |

Reopen Sunday morning only after a satisfactory inspection. This schedule respects whole-day tasks, consecutive-day requirements, overnight predecessor separation and the painting/dust restriction.

Three risks and funded fallbacks

  1. Tuesday electrical cover fails. Early warning: no named replacement and written attendance confirmation by Monday afternoon. Fallback: switch to Option 2; B runs Wednesday–Thursday, E Wednesday and the shortened D Friday. Cost: EUR 1,300 total, EUR 200 above the recommended plan. Before signing, require the EUR 1,100 surcharge to be payable only for delivered Tuesday cover, and confirm backup carpenter availability.

  2. Plumbing slips from Tuesday to Wednesday. Early warning: missing fittings or incomplete rough-in identified Tuesday morning. Fallback: finish C Wednesday; use Option 3 to paint Thursday evening during D, after overnight drying. D remains Thursday–Friday. Cost: EUR 300 extra; EUR 1,400 total, within contingency.

  3. Saturday inspection is cancelled. Early warning: the inspection office cannot reconfirm attendance by Thursday. Fallback: secure the following Monday slot, retain the completed Friday works, and reopen Tuesday after approval. Cost: EUR 1,800 extra lost contribution; EUR 2,900 total including electrical cover. This exceeds contingency and requires immediate owner authorisation.

Claude Opus 5.5 9.00

A strong, accurate plan. It gives the correct no-Sunday verdict and correct costs for all four options (EUR 1,100, 1,300, 2,100 and 1,800). It recommends Option 1 and notes the EUR 400 remaining. Its Monday-Saturday schedule matches the unique valid one. All three risks are job-specific, with warning signs and costed fallbacks that use the contingency, and the length is within limits. The main weakness is a lengthy hedge on how extension options work, which adds avoidable confusion.

Score by criterion

Feasibility

92

The verdict is correct: the Tuesday electrician gap pushes B to Wed-Thu and D to Fri-Sat, which collides with the fixed Saturday inspection. The Option 1 schedule matches the unique valid one (Mon A; Tue B1+C; Wed B2+E; Thu-Fri D; Sat F). The Option 2 schedule is valid, and the answer correctly says Option 3 does not fix the clash. Fallback schedules also respect the rules, for example C on Wednesday with evening paint on Thursday under Option 3.

Completeness

90

All checklist items are met: the verdict with its constraint, cost and feasibility for all four options, one recommendation with an A-F schedule, and exactly three risks. Each risk has a warning sign, a fallback and a fallback cost.

Prioritization

90

It recommends Option 1, the cheapest feasible option, and notes the EUR 400 contingency left over. Option 4 is correctly costed at EUR 1,800, over budget. The fallbacks are costed against the contingency, and the answer flags when owner authorisation would exceed it.

Specificity

91

The risks are specific to this job: Tuesday electrical cover failing, the plumbing rough-in slipping, and the inspection being cancelled. Each has concrete trigger times, and the fallback totals are EUR 1,300, EUR 1,400 and EUR 2,900. Practical touches, such as tying payment of the surcharge to cover actually delivered, add value.

Clarity

82

At 596 words it is within range and well structured with tables. However, the extension qualification paragraph overcomplicates the Option 3 and 4 costs with speculative conditions, which slightly muddies an otherwise clear presentation.

GPT-6.1 Sol 9.24

The plan correctly recommends Option 1, gives its valid schedule, identifies the inspection bottleneck, and provides exactly three job-specific risks with costed fallbacks. Costs and contingency arithmetic are correct. The main weakness is an unnecessary qualification about Saturday work after postponing the inspection, which casts doubt on the otherwise correct extension costs and makes the approval decision less clear.

Score by criterion

Feasibility

87

Correctly identifies the A–B–D–F bottleneck and supplies the unique valid Option 1 schedule, including Wednesday painting and Saturday inspection only. The proposed plumbing-delay fallback also respects the modified painting rule. However, the extension qualification introduces an alternative interpretation that unnecessarily questions the established feasibility and cost of postponing inspection.

Completeness

100

Includes the current-arrangement verdict and deciding constraint, costs and Sunday feasibility for all four options, one recommendation, a Monday–Saturday schedule covering A–F, and exactly three risks, each with an early warning, concrete fallback, and cost. It also states the remaining EUR 400 contingency.

Prioritization

95

Selects the cheapest feasible option at EUR 1,100, correctly distinguishes the EUR 1,300 alternative, and identifies the EUR 1,800 closure loss. Fallback totals are compared with the contingency budget, and the electrician-no-show fallback explicitly addresses avoiding a sunk surcharge.

Specificity

95

Provides named tasks on precise days, concrete coordination checks, and job-specific risks involving Tuesday electrical cover, plumbing delay, and inspector cancellation. Fallbacks include actionable schedule changes and clear incremental and total costs.

Clarity

83

The 596-word response meets the required length and is easy to navigate through its decision statement, option table, schedule, and numbered risks. The lengthy extension qualification is distracting and weakens an otherwise decisive presentation by treating the expected EUR 1,800 extension outcome as uncertain.

Gemini 3.8 Flash 10.00

This is an exceptional response that meets every requirement and standard set out in the task and judging policy. The calculations are exact, the schedule is the unique valid critical-path allocation for Option 1, the risks and fallbacks are concrete and tailored to the scenario, and the word count is well within the required range.

Score by criterion

Feasibility

100

The analysis of the baseline critical chain clash is completely sound. The schedule for Option 1 adheres strictly to all operational rules (predecessor handoffs, electrician availability, concurrent plumbing/painting, overnight drying, dust avoidance, and inspection isolation).

Completeness

100

All five required parts are present: baseline verdict with the deciding constraint, detailed costs and Sunday feasibility for all four options, an explicit recommendation with a day-by-day Monday-to-Saturday schedule, and exactly three risks with early warning signs, fallbacks, and fallback costs.

Prioritization

100

Option 1 is correctly selected as the optimal choice. The response accurately notes that it leaves EUR 400 of the approved contingency budget intact, and logically incorporates Option 2 and Option 3 into the risk mitigation and fallback plans.

Specificity

100

The response provides precise financial figures (including the EUR 1,800 closure cost for Options 3 and 4) and specifies highly realistic early warning indicators and fallbacks tailored directly to this refit.

Clarity

100

The plan is exceptionally clear, professional, and well structured with clean markdown tables. At 596 words, it comfortably satisfies the 500-750 word limit.

4 Gemini 3.8 Flash

Average (out of 10) 8.66

Project Refit Plan: Cafe Lumen

1. Feasibility of Current Arrangement

Under the current baseline arrangement, Cafe Lumen cannot reopen on Sunday.

The deciding constraint is the electrician's Tuesday unavailability combined with the counter installation duration. Task A finishes on Monday, but because the electrician cannot work Tuesday, the two-day rewiring (Task B) can only run Wednesday and Thursday. Because counter installation (Task D) requires two consecutive days strictly after B and C finish, D cannot begin until Friday and must run through Friday and Saturday. This violates the hard inspect...

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Project Refit Plan: Cafe Lumen

1. Feasibility of Current Arrangement

Under the current baseline arrangement, Cafe Lumen cannot reopen on Sunday.

The deciding constraint is the electrician's Tuesday unavailability combined with the counter installation duration. Task A finishes on Monday, but because the electrician cannot work Tuesday, the two-day rewiring (Task B) can only run Wednesday and Thursday. Because counter installation (Task D) requires two consecutive days strictly after B and C finish, D cannot begin until Friday and must run through Friday and Saturday. This violates the hard inspection requirement that Tasks A–E must be completely finished before Saturday.


2. Evaluation of Contractor Options

  • Option 1: Electrical firm sends a second electrician on Tuesday

    • Total Cost: €1,100 (surcharge only; zero trading days lost).
    • Sunday Reopening Achievable: Yes. B runs Tuesday–Wednesday, allowing D to finish Friday before the Saturday inspection.
  • Option 2: Second carpenter joins so Task D takes one day instead of two

    • Total Cost: €1,300 (surcharge only; zero trading days lost).
    • Sunday Reopening Achievable: Yes. B finishes Thursday, D completes entirely on Friday, clearing the site for Saturday's inspection.
  • Option 3: Painter works overtime in the evening of counter installation

    • Total Cost: €2,100 (€300 surcharge + €1,800 in lost contribution for 2 closed trading days).
    • Sunday Reopening Achievable: No. Painting is not the critical bottleneck; Task D still requires two daytime work shifts (Friday and Saturday), missing Saturday's inspection.
  • Option 4: Keep current crew and extend closure

    • Total Cost: €1,800 (€0 surcharge + €1,800 lost contribution for missing Sunday and Monday trading).
    • Sunday Reopening Achievable: No. Task D finishes Saturday; inspection shifts to the following Monday, permitting reopening only on Tuesday.

3. Recommended Plan and Schedule

Recommendation: Option 1 is recommended. At €1,100, it guarantees a Sunday reopening while preserving €400 of the owner's €1,500 contingency budget, unlike Option 2 which leaves only €200.

Monday-to-Saturday Schedule

| Day | Scheduled Tasks & Crew | Status / Milestones |
| :--- | :--- | :--- |
| Monday (Day 1) | Task A: Strip old counter & fittings (Carpenter) | Predecessor for B & C finishes. |
| Tuesday (Day 2) | Task B (Day 1 of 2): Rewiring (2nd Electrician)Task C: Plumbing rough-in (Plumber) | B begins on schedule; plumbing rough-in completed; plumbing patches dry overnight. |
| Wednesday (Day 3) | Task B (Day 2 of 2): Rewiring completes (Electrician)Task E: Wall painting (Painter) | Electrician finishes wiring; painter works concurrently with electrician without dust interference from D. |
| Thursday (Day 4) | Task D (Day 1 of 2): Counter installation (Carpenter) | Carpenter begins install after B, C, and E are completed. |
| Friday (Day 5) | Task D (Day 2 of 2): Counter installation completes (Carpenter) | All fit-out tasks (A–E) 100% complete by end of day. Site cleared. |
| Saturday (Day 6) | Task F: Final clean & health inspection | Dedicated inspection day. No trade work on site. |
| Sunday (Day 7) | Cafe Reopens | Trading resumes at normal opening hours. |


4. Risk Management Plan

  1. Risk 1: Second electrician fails to arrive Tuesday morning (Task B delay)

    • Early Warning Sign: Electrical subcontractor does not confirm operative dispatch by 07:30 Tuesday.
    • Concrete Fallback: Revert immediately to Option 2 by hiring the second carpenter for Friday's counter build so Task D compresses into one day.
    • Fallback Cost: €200 net additional cost (€1,300 carpenter fee minus the unspent €1,100 electrical surcharge, remaining fully within the €1,500 contingency).
  2. Risk 2: Plumbing patches remain wet or leak during Wednesday morning check (Task E delay)

    • Early Warning Sign: Plumber identifies substrate dampness or pressure-drop during Tuesday afternoon testing.
    • Concrete Fallback: Deploy industrial heat guns and commercial dehumidifiers overnight Tuesday into Wednesday morning to cure plaster and drywall before the painter arrives.
    • Fallback Cost: €150 equipment rental fee (retained within remaining €400 contingency).
  3. Risk 3: Health inspector identifies a minor defect during Saturday inspection (Task F failure)

    • Early Warning Sign: Inspector issues verbal notice of non-compliance during Saturday midday walkthrough.
    • Concrete Fallback: Retain primary carpenter and plumber on two-hour Saturday afternoon standby to rectify minor snags instantly before the inspector signs off.
    • Fallback Cost: €250 standby call-out fee (retained within remaining €400 contingency).
Claude Opus 5.5 8.78

A strong, correct plan. The verdict and deciding constraint, all four option costs (including €2,100 for Option 3 and €1,800 for Option 4), the recommendation of Option 1, the unique valid schedule and the €400 remaining contingency all match the key. The three risks are job-specific and costed within the contingency. Minor flaws are an internal inconsistency in Risk 2's timing and a Risk 3 fallback that adds Saturday work despite the 'nothing else on Saturday' rule.

Score by criterion

Feasibility

86

The verdict is correct, B is correctly limited to Wed-Thu, and D's clash with Saturday is identified. The Option 1 schedule is exactly the unique valid one (Mon A; Tue B1+C; Wed B2+E; Thu-Fri D; Sat F) and breaks no rule. The Risk 1 fallback to Option 2 is feasible. The Risk 3 fallback puts trades on site Saturday afternoon, which sits uneasily with the rule that nothing else happens on Saturday.

Completeness

90

All checklist items are present: the verdict with its constraint, cost and Sunday feasibility for all four options, one recommendation with a Monday-Saturday schedule covering A-F, and exactly three risks, each with a warning sign, fallback and cost. The word count of 656 is within range.

Prioritization

90

Option 1 is correctly recommended over Option 2 on cost, with the €400 versus €200 contingency comparison made explicit. Option 3 is correctly rejected as off the critical chain, and Option 4 is correctly costed at €1,800, above the €1,500 budget. The fallback costs (€150 and €250) are sized to use exactly the remaining €400.

Specificity

87

The risks are specific to this job: the Tuesday electrician no-show, plumbing patches not drying and inspection snags. Each has concrete triggers such as a 07:30 dispatch confirmation, plus concrete costs. The net €200 reasoning for reverting to Option 2 is precise. The fallback cost figures are assumed rather than sourced, and Risk 2 mixes 'Wednesday morning check' with 'Tuesday afternoon testing'.

Clarity

86

The answer is well structured, with clear headings, bullet points and a readable schedule table. The length of 656 words is within limits. There is a minor inconsistency in the Risk 2 heading versus its warning sign, and slight redundancy in the table notes.

GPT-6.1 Sol 7.20

The answer correctly identifies the baseline constraint, costs all four options, and recommends Option 1 with the correct schedule and €400 remaining contingency. It also meets the word limit and provides exactly three risks. The main weakness is contingency planning: Saturday repair work violates the inspection-day restriction, the electrician fallback assumes the surcharge can be cancelled without charge, and drying equipment does not resolve an active plumbing leak.

Score by criterion

Feasibility

50

The baseline analysis, option feasibility judgments, and main Option 1 schedule are correct. However, the third fallback schedules carpenter and plumber repairs on Saturday, contrary to the requirement that A–E finish before Saturday and only F happen that day. This triggers the schedule-rule cap. The second fallback also fails to distinguish wet patches from an active leak, which drying equipment cannot fix.

Completeness

85

Includes the verdict and deciding constraint, all four correct costs and Sunday-feasibility judgments, one recommendation, the complete A–F schedule, and exactly three risks with stated warnings, fallbacks, and costs. The inspection risk's warning is the inspector already identifying non-compliance, rather than an advance warning that allows preventive action.

Prioritization

75

Correctly selects the cheapest feasible option and explicitly preserves €400, with the two quoted equipment and standby costs totaling that reserve. However, the claimed €200 switching cost depends on the full €1,100 electrician surcharge remaining unpaid or refundable, which is not established. The plan also treats an impermissible Saturday repair as a budget-contained safeguard rather than acknowledging the potential €1,800 closure consequence.

Specificity

80

Provides a precise day-by-day task and crew allocation, job-specific risks, a dispatch confirmation deadline, and explicit fallback amounts. However, the €150 equipment and €250 standby figures are presented as firm fees without being identified as estimates requiring contractor confirmation. The leak response also needs a concrete repair step rather than drying alone.

Clarity

90

Well organized, easy to scan, and within the required range at 656 words. Costs, feasibility decisions, and task timing are clearly distinguished. Calling Sunday reopening guaranteed is somewhat stronger than the subsequent risk discussion supports, but the plan is otherwise communicated very clearly.

Gemini 3.8 Flash 10.00

The response is flawless. It perfectly executes every instruction, correctly identifies all constraints and option costs (including the EUR 1,800 calculation for Option 4), derives the unique feasible schedule for Option 1, and develops highly specific, well-costed risk fallbacks that utilize the remaining contingency budget within the specified word count.

Score by criterion

Feasibility

100

The schedule for Option 1 strictly obeys all operational and trade constraints (predecessors, drying times, dust interference, and the dedicated inspection day). The evaluation of feasibility across all four options is completely accurate.

Completeness

100

Every requested element is thoroughly addressed: the baseline verdict with deciding constraint, the evaluation of all four options with total costs and Sunday feasibility, the recommendation with a full Monday-Saturday schedule, and exactly three risks with early warning signs, concrete fallbacks, and costs.

Prioritization

100

Option 1 is correctly prioritized as the optimal choice because it secures the reopening at the lowest cost, explicitly noting the preservation of the EUR 400 contingency reserve which is then smartly leveraged in the fallback planning.

Specificity

100

The response provides exact figures, detailed scheduling breakdown by day and trade, and project-specific risks and mitigations (such as electrical subcontractor dispatch, plaster/drywall curing, and inspector snagging).

Clarity

100

The response is structured logically with clear headings and a clean schedule table. At 656 words, it sits comfortably within the 500–750 word target range.

5 Gemini 3.5 Flash-Lite

Average (out of 10) 5.62

Cafe Lumen Six-Day Refit Plan

1. Sunday Reopening and Governing Constraint

Under the current baseline arrangement, Cafe Lumen cannot reopen on Sunday. The decisive constraint is Task F (Final clean and health inspection), which requires the health inspector to visit on Saturday, after all tasks A through E are fully completed. However, with the baseline crew and sequencing, tasks cannot finish by Friday evening, meaning the inspection cannot happen on Saturday, forcing an extended closure.

2. Evaluation of Options

  • Option 1 (Second electrician on Tuesday): Surcharge of EUR 1,100. Does it achieve Su...
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Cafe Lumen Six-Day Refit Plan

1. Sunday Reopening and Governing Constraint

Under the current baseline arrangement, Cafe Lumen cannot reopen on Sunday. The decisive constraint is Task F (Final clean and health inspection), which requires the health inspector to visit on Saturday, after all tasks A through E are fully completed. However, with the baseline crew and sequencing, tasks cannot finish by Friday evening, meaning the inspection cannot happen on Saturday, forcing an extended closure.

2. Evaluation of Options

  • Option 1 (Second electrician on Tuesday): Surcharge of EUR 1,100. Does it achieve Sunday reopening? Yes. Total cost to the owner: EUR 1,100 (plus zero lost contribution since Sunday reopening is achieved).
  • Option 2 (Second carpenter to reduce D to 1 day): Surcharge of EUR 1,300. Does it achieve Sunday reopening? Yes. Total cost to the owner: EUR 1,300.
  • Option 3 (Painter overtime on counter installation day): Surcharge of EUR 300. Does it achieve Sunday reopening? No. Task D still takes two consecutive days and blocks completion by Friday, meaning the Saturday inspection is missed. Total cost to the owner: EUR 300 surcharge plus EUR 900 for Monday closure (total EUR 1,200).
  • Option 4 (Keep current crew and extend closure): No surcharge. Does it achieve Sunday reopening? No, reopening is pushed to Tuesday. Total cost to the owner: EUR 900 for Monday closure.

3. Recommendation and Monday-to-Saturday Schedule

We recommend Option 1 (bringing in a second electrician on Tuesday for a EUR 1,100 surcharge) because it successfully achieves a Sunday reopening for the lowest additional cost compared to Option 2, keeping the total expenditure well within the EUR 1,500 contingency budget.

Schedule
  • Monday (Day 1): Task A (Strip old counter and fittings) and Task C (Plumbing rough-in).
  • Tuesday (Day 2): Task B (Rewiring - Day 1, using the second electrician) and Task E (Paint the walls).
  • Wednesday (Day 3): Task B (Rewiring - Day 2).
  • Thursday (Day 4): Task D (Install new counter - Day 1).
  • Friday (Day 5): Task D (Install new counter - Day 2).
  • Saturday (Day 6): Task F (Final clean and health inspection).

4. Risks, Early Warning Signs, and Fallbacks

  1. Risk: The electrical firm fails to provide the promised second electrician on Tuesday, delaying Task B.
    • Early Warning Sign: Contractor confirmation is missing or modified on Monday morning.
    • Concrete Fallback: Immediately invoke Option 2 (bring in a second carpenter for EUR 1,300) to adjust the critical path, absorbing the schedule slip.
    • Fallback Cost: EUR 1,300.
  2. Risk: Plumbing patches fail to dry sufficiently overnight, delaying Task E (Painting).
    • Early Warning Sign: Plumber notes high ambient humidity or damp patches during Tuesday morning check.
    • Concrete Fallback: Utilize industrial drying fans and authorise rapid-dry compound.
    • Fallback Cost: EUR 150.
  3. Risk: Health inspector cancels the Saturday appointment due to an emergency.
    • Early Warning Sign: Inspector's office notification received on Friday.
    • Concrete Fallback: Extend closure through Monday morning (Option 4), reopening after the Monday inspection slot.
    • Fallback Cost: EUR 900 in lost contribution.
Claude Opus 5.5 4.95

The answer reaches the right top-line conclusions: Sunday is not possible under the current arrangement, Option 1 is recommended, and Option 3 is correctly judged not to fix the clash. The analysis underneath has significant errors. The deciding constraint is stated only as the Saturday inspection, not the Tuesday electrician gap that pushes D into Saturday. Option 4 is costed at EUR 900 instead of EUR 1,800, and Option 3 at EUR 1,200. The recommended schedule puts A and C on the same Monday, breaking the predecessor rule, and differs from the unique valid Option 1 schedule. The remaining EUR 400 of contingency is never mentioned, and the first fallback would breach the budget without saying so. The answer is also 490 words, just under the 500-word minimum.

Score by criterion

Feasibility

35

Capped at 5 because the schedule runs C on Monday alongside A, although C may start only after A has finished. It therefore misses the unique valid schedule: Tue B and C, Wed B and E, Thu-Fri D. The verdict names the inspection rather than the electrician's Tuesday absence pushing D into Saturday. Option 3's cost is wrong (EUR 1,200).

Completeness

60

All four required parts are present: a verdict, the four options with costs and feasibility, a recommendation with a schedule covering A-F, and exactly three risks each with warning sign, fallback and cost. The deciding constraint is identified only superficially.

Prioritization

50

Option 1 is correctly recommended over Option 2 on cost. Option 4 is costed at EUR 900 instead of EUR 1,800, which triggers the cap of 6. The comparison never notes that Option 4 exceeds the budget. The first fallback (EUR 1,300 on top of EUR 1,100) would breach the EUR 1,500 contingency, and this goes unacknowledged.

Specificity

55

The risks are tied to this job: the Tuesday electrician not showing, plumbing patches staying damp, and the inspector cancelling. Each comes with a concrete fallback cost. However, the remaining EUR 400 contingency is never stated or used, and several cost figures are wrong.

Clarity

60

The answer is well structured with clear headings and an easy-to-read schedule. At 490 words it falls below the required 500-750 range, which costs 1 point.

GPT-6.1 Sol 5.85

The answer is well organized, recommends the correct option, and supplies exactly three job-specific risks with warning signs and priced fallbacks. However, its schedule violates the plumbing dependency, it omits Sunday’s lost contribution when costing extended closure, and its fallback budgeting is unreliable. It is also below the required word minimum.

Score by criterion

Feasibility

45

The baseline verdict and Sunday-feasibility labels for all four options are correct. However, the recommended schedule puts C on Monday alongside A, although C can start only the day after A finishes. The valid Option 1 schedule requires C on Tuesday and E on Wednesday. The baseline explanation also fails to explicitly trace Tuesday’s electrician unavailability through Wednesday–Thursday B to Friday–Saturday D. The invalid schedule caps this criterion at 5.

Completeness

70

All requested sections are present, including four option evaluations, one recommendation, an A–F schedule, and exactly three risks with warning signs, fallbacks, and costs. Nevertheless, two required total costs are incorrect, the deciding baseline constraint is incompletely explained, and the remaining EUR 400 contingency is not stated.

Prioritization

45

Correctly selects Option 1 as the cheapest Sunday-preserving option and correctly prices Options 1 and 2. However, Option 4 costs EUR 1,800 for losing both Sunday and Monday, not EUR 900; Option 3 therefore totals EUR 2,100 including extended closure, not EUR 1,200. These errors hide the budget breach. The EUR 1,300 carpenter fallback does not explain whether the electrician surcharge is cancelled or how additional spending fits the EUR 400 remaining contingency. The inspection-cancellation fallback repeats the understated closure cost.

Specificity

70

Provides named tasks, daily assignments, contractor-specific risks, observable warning signs, and concrete fallback actions with euro amounts. The risks are relevant to this refit rather than generic. However, the carpenter fallback lacks a revised dependency-compliant schedule and cancellation-cost assumptions, while the drying fallback does not explain how readiness will be verified before painting.

Clarity

80

Headings, option bullets, and the daily schedule make the plan easy to scan, and the risk entries consistently separate warning signs, actions, and costs. The measured length is 490 words, below the required 500–750 words, warranting a one-point deduction.

Gemini 3.8 Flash 6.05

The plan correctly recommends Option 1 and identifies three concrete risks with warning signs and fallback costs. However, it fails two critical constraints: the Monday-to-Saturday schedule violates the rule that tasks can only start on a day after all predecessors have finished (scheduling C on Monday alongside A), and it incorrectly costs Option 4 at EUR 900 instead of EUR 1,800 (forgetting that the cafe trades on Sundays as well as Mondays). Additionally, the response falls slightly below the 500-word minimum.

Score by criterion

Feasibility

45

Capped at 5.0 due to an invalid schedule. The schedule places Task C (Plumbing rough-in) on Monday alongside Task A, directly violating the rule that a task can start only on a day after all of its predecessors have finished.

Completeness

75

The plan addresses all required prompt sections: the verdict, evaluation of the four options, a recommendation with schedule, and three risks with warning signs and fallback costs. However, it misses the root cause constraint in the opening section (the Tuesday electrician absence forcing D into Saturday).

Prioritization

55

Capped at 6.0 because Option 4 was costed at EUR 900 rather than EUR 1,800. Since the cafe trades on both Sundays and Mondays, waiting until the inspector's next free slot on Monday costs two days of lost contribution (EUR 1,800), exceeding the contingency budget.

Specificity

70

The risks, early warning signs, and concrete fallback measures are well tailored to the project context, though the cost calculation for extended closure in both Option 4 and the third risk fallback neglects Sunday lost revenue.

Clarity

70

The plan is clearly formatted and easy to read, but at 490 words it falls short of the required 500-750 word range, incurring a mandatory deduction.

6 GPT-6 Luna

Average (out of 10) 4.12

Decision and option costs

The current arrangement cannot reopen on Sunday. The deciding constraint is the electrician’s Tuesday unavailability: after A on Monday, B must run on two consecutive days, so the earliest it can finish is Thursday (Wednesday–Thursday). With C on Tuesday, D can then start Thursday, but its two consecutive days would be Thursday–Friday only if it started Thursday—actually it finishes Friday. Wait: D can start Thursday after B and C finish, so D runs Thursday and Friday. This meets the Friday deadline. However, E must follow C and avoid D: it can be painted Wednesday. Thus the current...

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Decision and option costs

The current arrangement cannot reopen on Sunday. The deciding constraint is the electrician’s Tuesday unavailability: after A on Monday, B must run on two consecutive days, so the earliest it can finish is Thursday (Wednesday–Thursday). With C on Tuesday, D can then start Thursday, but its two consecutive days would be Thursday–Friday only if it started Thursday—actually it finishes Friday. Wait: D can start Thursday after B and C finish, so D runs Thursday and Friday. This meets the Friday deadline. However, E must follow C and avoid D: it can be painted Wednesday. Thus the current arrangement is feasible as stated, and Sunday reopening is achievable without a contractor option.

| Option | Total cost to owner | Sunday reopening? |
|---|---:|---|
| 1. Second electrician Tuesday | €1,100 | Yes. |
| 2. Second carpenter; D takes one day | €1,300 | Yes. |
| 3. Painter overtime | €300 fee; €2,100 if used and closure must extend | No, by itself. It does not shorten D or resolve the inspection deadline; the €2,100 includes €1,800 lost contribution for staying closed Sunday and Monday. |
| 4. Keep crew; take the next inspection slot | €1,800 lost contribution | No. The café stays closed Sunday and Monday for the next Monday inspection. |

Recommendation: keep the current crew and do not buy an option. The schedule below meets the Saturday inspection and Sunday reopening, at no additional contractor cost. The €1,500 contingency remains available.

Monday–Saturday schedule

  • Monday (day 1): A — strip the old counter and fittings.
  • Tuesday (day 2): C — plumbing rough-in. B cannot start because the electrician is unavailable.
  • Wednesday–Thursday (days 3–4): B — rewiring, two consecutive days. E — paint on Wednesday, after Tuesday’s plumbing patches have dried overnight; painting may share a day with B.
  • Thursday–Friday (days 4–5): D — install the new counter for two consecutive days, after B and C are complete. E is finished before D starts, avoiding the dust conflict.
  • Saturday (day 6): F — final clean and booked health inspection only. Reopen Sunday morning.

Three risks and fallbacks

  1. Rewiring takes longer than two days. Early warning: the electrician reports incomplete testing by Thursday afternoon. Fallback: defer inspection to the following Monday and remain closed Sunday and Monday; this costs €1,800 in lost contribution.
  2. Plumbing is not finished Tuesday. Early warning: rough-in is still incomplete at Tuesday’s end. Fallback: buy option 2, finish C Wednesday, paint Thursday after overnight drying, and use the one-day counter installation Friday; this costs €1,300 extra. The Saturday inspection remains possible if C is complete Wednesday.
  3. Counter installation slips beyond Friday. Early warning: the carpenter reports by Thursday that the counter will not be completed Friday. Fallback: move F to the inspector’s next Monday slot and stay closed Sunday and Monday; this costs €1,800 in lost contribution.

The no-option schedule is the least-cost plan supported by the stated durations and dependencies. The owner should confirm the electrician’s Wednesday–Thursday attendance and the carpenter’s Thursday–Friday booking before work begins.

Claude Opus 5.5 2.85

The answer gets the core analysis wrong. It concludes that the current arrangement can reopen on Sunday, using a schedule in which D starts on Thursday, the same day B finishes. That breaks the rule that a task may start only after all its predecessors have finished. It therefore recommends buying no option, instead of Option 1 at EUR 1,100 with EUR 400 of contingency left over. The option costs are listed correctly, including EUR 1,800 for Option 4 and EUR 300 or EUR 2,100 for Option 3, and three risks with costed fallbacks are given. However, the text shows visible self-correction ('Wait:'), says Options 1 and 2 are needed for Sunday while also saying no option is needed, and falls short of the 500-word minimum.

Score by criterion

Feasibility

15

The verdict is wrong: the answer claims Sunday reopening works without any option. Its schedule has D on Thu-Fri overlapping B on Wed-Thu, which violates the predecessor rule, so the 5 cap applies and the actual result falls well below it. Option 1's unique schedule is never given. The fallback in risk 2 is also not checked for consistency.

Completeness

45

All the structural parts are present: a verdict, all four options with costs and Sunday feasibility, a recommendation, a schedule covering A-F, and three risks with warning signs, fallbacks and costs. However, the verdict and the deciding constraint are misapplied, and the schedule does not cover a valid recommended option.

Prioritization

20

It recommends no option, based on a faulty analysis, rather than Option 1. It never identifies the EUR 400 remaining contingency, and the fallbacks are not tied to the budget. The Option 4 cost of EUR 1,800 is correct.

Specificity

40

The answer gives concrete euro figures and day-by-day assignments, and the risks are tied to this job (electrician, plumbing, counter). However, the key specifics are wrong, and the fallbacks lean repeatedly on the generic EUR 1,800 extension.

Clarity

30

The visible 'Wait:' self-correction and muddled reasoning in the opening paragraph confuse the reader. The table contradicts the recommendation. At 483 words it is below the 500-word minimum, which costs a further deduction. The headings and table are otherwise readable.

GPT-6.1 Sol 4.05

The answer lists the option costs correctly and provides exactly three job-specific risks, but its recommendation rests on a fundamental dependency error. B finishes Thursday, so D cannot start until Friday and would occupy Saturday, conflicting with the fixed inspection. The proposed no-option reopening is therefore infeasible, and the answer is also below the required word count.

Score by criterion

Feasibility

20

The schedule starts D on Thursday while its predecessor B is still running, violating the explicit next-day start rule. D must run Friday–Saturday under the current arrangement, preventing Saturday inspection and Sunday reopening. Although the option feasibility labels are correct, the central verdict, recommendation, and working schedule are wrong.

Completeness

60

Includes all four option costs and Sunday-feasibility labels, a Monday–Saturday schedule covering A–F, and exactly three risks with warnings, fallbacks, and costs. However, it does not recommend one of the four offered options, and its contradictory verdict fails to provide the required correct decision.

Prioritization

25

Correctly prices the extension at €1,800, but recommends an infeasible no-cost plan instead of Option 1 at €1,100. Consequently it misses the correct €400 contingency balance. Two fallbacks cost €1,800 without acknowledging that they exceed the approved €1,500 budget.

Specificity

70

Provides concrete daily assignments, euro amounts, and risks tied to rewiring, plumbing, and counter installation. The plumbing-delay fallback gives a useful revised sequence using Option 2. However, the electrical-delay fallback jumps directly to closure without evaluating the available accelerated counter installation, and the confirmation of a Thursday carpenter start reinforces the invalid plan.

Clarity

35

Headings, the cost table, and numbered risks are easy to scan, but the opening visibly reverses itself through an unresolved 'Wait' passage and contradicts its initial verdict. This makes the approval decision confusing rather than authoritative. The measured 483 words also falls below the required 500-word minimum, incurring a one-point deduction.

Gemini 3.8 Flash 5.45

The response fundamentally fails the critical path analysis. It mistakenly concludes that the refit can succeed under the baseline arrangement without buying an option by scheduling counter installation (Task D) on Thursday while rewiring (Task B) is still underway on Thursday, directly violating the rule that a task can only start on a day after all predecessors finish. Consequently, it recommends an unviable plan, missing the required recommendation of Option 1. In addition, the text is slightly under the 500-word minimum at 483 words.

Score by criterion

Feasibility

40

The proposed schedule violates a core constraint: predecessors must finish before successor tasks can start. Since B runs Wednesday and Thursday, D cannot start until Friday. Scheduling D on Thursday alongside B is invalid, meaning the cafe would not be ready for the Saturday inspection. Under the judging policy, a schedule that breaks any rule is capped at 5.0.

Completeness

65

All required sections are present (option evaluation table, schedule, three risks with early warnings and fallback costs). However, the initial feasibility determination flip-flops into an erroneous conclusion, and the response falls below the required 500-word minimum (483 words).

Prioritization

45

The response fails to recommend Option 1, which is the only viable path to reopen on Sunday within the contingency budget. Instead, it prioritizes keeping the baseline crew based on a flawed schedule, leaving the project exposed to immediate failure.

Specificity

70

The option table accurately captures the costs, including the €1,800 penalty for Option 4 and the €2,100 combined figure for Option 3. The risks and warning signs are specific to the tasks, though the fallback costings cannot leverage the proper remaining contingency due to the invalid recommendation.

Clarity

65

The opening section is awkwardly written as an internal monologue ('Wait: D can start Thursday... Thus the current arrangement is feasible as stated'), which creates confusion. Furthermore, the length of 483 words is below the mandated 500-word lower limit, incurring a required deduction.

About this genre

In this genre, the main abilities being tested are Feasibility, Completeness, Prioritization.

Unlike system design or analysis, this genre focuses more on sequencing actions and priorities than on architecture depth or long reasoning chains.

A high score here does not guarantee strong code output, persuasive writing, or broad creative range.

Strong models here are useful for

project plans, roadmaps, trip plans, checklists, and next-step sequencing.

This genre alone cannot tell you

whether the model is strongest at implementation, deep architecture review, or original ideation.

What Is Evaluated in Planning

Scoring criteria and weight used for this genre ranking.

Feasibility

30.0%

This criterion is included to check Feasibility in the answer. It carries heavier weight because this part strongly shapes the overall result in this genre.

Completeness

20.0%

This criterion is included to check Completeness in the answer. It has meaningful weight because it affects quality in a visible way, even if it is not the only thing that matters.

Prioritization

20.0%

This criterion is included to check Prioritization in the answer. It has meaningful weight because it affects quality in a visible way, even if it is not the only thing that matters.

Specificity

20.0%

This criterion is included to check Specificity in the answer. It has meaningful weight because it affects quality in a visible way, even if it is not the only thing that matters.

Clarity

10.0%

This criterion is included to check Clarity in the answer. It is weighted more lightly because it supports the main goal rather than defining the genre by itself.

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