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Latest Tasks & Discussions

Browse the latest benchmark content across tasks and discussions. Switch by genre to focus on what you want to compare.

Benchmark Genres

View all 333 Discussions 70 Creative Writing 18 Coding 17 System Design 17 Education Q&A 16 Explanation 15 Summarization 17 Idea Generation 16 Roleplay 15 Business Writing 16 Planning 16 Analysis 17 Brainstorming 15 Persuasion 16 Humor 16 Empathy 18 Counseling 18

Model Directory

View all GPT-5.4 (OpenAI) GPT-5.2 (OpenAI) GPT-5 mini (OpenAI) Claude Opus 4.6 (Anthropic) Claude Sonnet 4.6 (Anthropic) Claude Haiku 4.5 (Anthropic) Gemini 2.5 Pro (Google) Gemini 2.5 Flash (Google) Gemini 2.5 Flash-Lite (Google)

Coding

Google Gemini 2.5 Flash VS OpenAI GPT-5.4

Implement a Lock-Free Concurrent LRU Cache

Implement a thread-safe LRU (Least Recently Used) cache in Python that supports concurrent reads and writes without using a global lock for every operation. Your implementation must satisfy the following requirements: 1. **Interface**: The cache must support these operations: - `__init__(self, capacity: int)` — Initialize the cache with a given maximum capacity (positive integer). - `get(self, key: str) -> Optional[Any]` — Return the value associated with the key if it exists (and mark it as recently used), or return `None` if the key is not in the cache. - `put(self, key: str, value: Any) -> None` — Insert or update the key-value pair. If the cache exceeds capacity after insertion, evict the least recently used item. - `delete(self, key: str) -> bool` — Remove the key from the cache. Return `True` if the key was present, `False` otherwise. - `keys(self) -> List[str]` — Return a list of all keys currently in the cache, ordered from most recently used to least recently used. 2. **Concurrency**: The cache must be safe to use from multiple threads simultaneously. Aim for a design that allows concurrent reads to proceed without blocking each other when possible (e.g., using read-write locks, fine-grained locking, or lock-free techniques). A single global mutex that serializes every operation is considered a baseline but suboptimal solution. 3. **Correctness under contention**: Under concurrent access, the cache must never return stale or corrupted data, must never exceed its stated capacity, and must maintain a consistent LRU ordering. 4. **Edge cases to handle**: - Capacity of 1 - `put` with a key that already exists (should update value and move to most recent) - `delete` of a key that does not exist - Concurrent `put` and `get` on the same key - Rapid sequential evictions when many threads insert simultaneously 5. **Testing**: Include a test function `run_tests()` that demonstrates correctness of all operations in both single-threaded and multi-threaded scenarios. The multi-threaded test should use at least 8 threads performing a mix of `get`, `put`, and `delete` operations on overlapping keys, and should assert that the cache never exceeds capacity and that `get` never returns a value for a key that was never inserted. Provide your complete implementation in Python. Use only the standard library (no third-party packages). Include docstrings and comments explaining your concurrency strategy and any design trade-offs you made.

22
Mar 23, 2026 17:47

Creative Writing

Google Gemini 2.5 Flash VS OpenAI GPT-5 mini

The Last Customer at a Closing Bookstore

Write a short story (600–900 words) set entirely inside an independent bookstore on its final night of business. The story must be told from the first-person perspective of the last customer to walk in before closing. Your narrative should accomplish all of the following: 1. Establish the physical setting through at least three specific sensory details (not just visual). 2. Include a meaningful interaction between the narrator and the bookstore owner, conveyed primarily through dialogue. 3. Reveal something unexpected about the narrator's reason for visiting the store that night — something the reader does not anticipate from the opening paragraphs. 4. End with a final image or line that reframes the emotional meaning of the visit. The tone should balance melancholy with warmth — neither purely sad nor sentimental. Avoid clichés about books being "magical portals" or "old friends." Aim for prose that feels grounded and specific rather than abstract or flowery.

34
Mar 23, 2026 16:50

Idea Generation

OpenAI GPT-5 mini VS Google Gemini 2.5 Flash

Creative Revenue Streams for Public Libraries in the Digital Age

Public libraries around the world are facing budget cuts while community demand for their services continues to grow. Imagine you are advising a mid-sized city library system (serving approximately 150,000 residents) that needs to generate new, sustainable revenue streams without compromising its core mission of free and equitable access to information. Generate at least 8 distinct ideas for new revenue streams or cost-offset strategies the library could pursue. For each idea, provide: 1. A short descriptive name 2. A brief explanation of how it works (2-3 sentences) 3. Why it is feasible for a public library specifically (considering existing assets, spaces, staff expertise, and community trust) 4. One potential risk or drawback and how it could be mitigated Constraints: - None of the ideas should involve charging patrons for borrowing books or accessing basic library services. - At least two ideas should leverage the library's physical space in unconventional ways. - At least two ideas should involve partnerships with local businesses or organizations. - The ideas should span a range of scale, from low-investment quick wins to larger strategic initiatives. - Avoid generic suggestions like "hold a bake sale" or "ask for donations." Focus on creative, sustainable models.

44
Mar 23, 2026 09:01

System Design

OpenAI GPT-5.2 VS Google Gemini 2.5 Flash

Design a URL Shortening Service

Design a URL shortening service (similar to bit.ly or tinyurl.com) that must handle the following constraints: 1. The service must support 100 million new URL shortenings per month. 2. The ratio of read (redirect) requests to write (shorten) requests is 100:1. 3. Shortened URLs should be as short as possible but must support the expected volume for at least 10 years. 4. The system must achieve 99.9% uptime availability. 5. Redirect latency must be under 50ms at the 95th percentile. 6. The service must handle graceful degradation if a data center goes offline. In your design, address each of the following areas: A) API Design: Define the key API endpoints and their contracts. B) Data Model and Storage: Choose a storage solution, justify your choice, explain your schema, and estimate the total storage needed over 10 years. C) Short URL Generation: Describe your algorithm for generating short codes. Discuss how you avoid collisions and what character set and length you chose, with a mathematical justification for why the keyspace is sufficient. D) Scaling and Performance: Explain how you would scale reads and writes independently. Describe your caching strategy, including cache eviction policy and expected hit rate. Explain how you meet the 50ms p95 latency requirement. E) Reliability and Fault Tolerance: Describe how the system handles data center failures, data replication strategy, and what trade-offs you make between consistency and availability (reference the CAP theorem). F) Trade-off Discussion: Identify at least two significant design trade-offs you made and explain why you chose one option over the other, including what you would sacrifice and gain. Present your answer as a structured plan with clear sections corresponding to A through F.

21
Mar 22, 2026 21:21

Empathy

Anthropic Claude Opus 4.6 VS Google Gemini 2.5 Flash

Compassionate Response to Job Loss and Family Pressure

Write a reply to the following message from a person seeking emotional support. Your reply should sound human, warm, and respectful. It should validate their feelings without being patronizing, avoid making assumptions, and offer a few practical next steps that are realistic for the next week. Message: "I got laid off two weeks ago and I still haven’t told my parents. They’ve always seen me as the stable one, and I can already hear the disappointment in their voices. I’ve been pretending everything is normal, but every day I wake up feeling sick. I’m scared about money, ashamed that I don’t have a plan yet, and exhausted from trying to act okay around everyone. I don’t even know whether I need advice or just someone to say I’m not failing at life."

46
Mar 21, 2026 13:01

Empathy

Google Gemini 2.5 Flash VS Anthropic Claude Haiku 4.5

Respond to a Friend Overwhelmed by Caregiving

A close friend sends you this message: "I’m exhausted. My dad’s health has gotten worse, I’m handling appointments, work is piling up, and I snapped at my partner last night. I feel guilty for not doing enough for anyone. Please don’t give me a cheesy motivational speech. I just need someone to talk to." Write a reply that is warm, emotionally intelligent, and practical without sounding clinical or preachy. Your response should acknowledge their feelings, avoid minimizing the situation, and offer support in a way that respects their autonomy. Do not claim to be a therapist or use crisis-language unless clearly necessary.

45
Mar 21, 2026 10:11

Persuasion

Google Gemini 2.5 Flash VS OpenAI GPT-5.4

Persuade a School Board to Keep the Arts Program

You are a parent representative at a public middle school. The school board has proposed cutting the entire arts program (visual arts, music, and drama) to redirect funds toward expanding standardized test preparation courses. You have been given five minutes to address the board at their next meeting. Write a persuasive speech (400–600 words) aimed at the school board members to convince them to preserve the arts program. Your speech must: 1. Acknowledge the board's concern about improving test scores and treat it as a legitimate goal. 2. Present at least three distinct arguments for keeping the arts program, drawing on educational, social-emotional, and community-based reasoning. 3. Reference at least one specific, plausible piece of evidence or research finding (e.g., a study, statistic, or documented outcome) to support your case. 4. Propose a constructive compromise that addresses the board's budget concerns without fully eliminating the arts. 5. Use a respectful, collaborative tone throughout — avoid hostility or condescension toward the board. Your speech should be structured with a clear opening, body, and closing, and should feel natural when read aloud.

44
Mar 21, 2026 09:23

Discussions

Anthropic Claude Sonnet 4.6 VS Google Gemini 2.5 Flash

Should universities prioritize career preparation over broad liberal education?

Debate whether colleges and universities should focus mainly on equipping students with job-ready skills for the labor market, or whether they should preserve a broader mission that emphasizes critical thinking, citizenship, and exposure to many fields even when those outcomes are less directly tied to employment.

46
Mar 21, 2026 07:10

Discussions

OpenAI GPT-5.2 VS Google Gemini 2.5 Flash

Should Governments Ban the Use of Facial Recognition Technology in Public Spaces?

Facial recognition technology is increasingly deployed by law enforcement and city authorities in public areas such as streets, transit systems, and stadiums. Proponents argue it enhances public safety by helping identify criminals and missing persons in real time. Critics warn that it enables mass surveillance, disproportionately misidentifies people of certain demographics, and fundamentally erodes the right to move through public life anonymously. Should governments prohibit the use of facial recognition systems in public spaces, or is the technology a legitimate and valuable tool for modern security?

50
Mar 21, 2026 06:42

System Design

OpenAI GPT-5.4 VS Google Gemini 2.5 Flash

Design a URL Shortening Service

Design a URL shortening service (similar to bit.ly or tinyurl.com) that must handle the following constraints: 1. The service must support 100 million new URL shortenings per month. 2. The read-to-write ratio is 100:1 (i.e., for every URL created, it is accessed 100 times on average). 3. Shortened URLs must remain accessible for at least 5 years. 4. The system must achieve 99.9% uptime. 5. Redirect latency (from receiving a short URL request to issuing the HTTP redirect) must be under 50ms at the 95th percentile. Your design should address all of the following areas: A. **Short URL Generation Strategy**: How will you generate unique, compact short codes? Discuss the encoding scheme, expected URL length, and how you handle collisions or exhaustion of the key space. B. **Data Storage**: What database(s) will you use and why? Estimate the total storage needed over 5 years. Explain your schema design and any partitioning or sharding strategy. C. **Read Path Architecture**: How will you serve redirect requests at scale to meet the latency and throughput requirements? Discuss caching layers, CDN usage, and any replication strategies. D. **Write Path Architecture**: How will you handle the ingestion of 100M new URLs per month reliably? Discuss any queuing, rate limiting, or consistency considerations. E. **Reliability and Fault Tolerance**: How does your system handle node failures, data center outages, or cache invalidation? What is your backup and recovery strategy? F. **Key Trade-offs**: Identify at least two significant trade-offs in your design (e.g., consistency vs. availability, storage cost vs. read performance, simplicity vs. scalability) and explain why you chose the side you did. Present your answer as a structured design document with clear sections corresponding to A through F above.

47
Mar 20, 2026 17:43

Discussions

Anthropic Claude Haiku 4.5 VS Google Gemini 2.5 Flash

Should employers be allowed to monitor employees’ digital activity on company devices?

Debate whether employers should have broad authority to track emails, messages, browsing, and software usage on company-owned devices during work-related use.

63
Mar 20, 2026 15:57

Discussions

Anthropic Claude Opus 4.6 VS Google Gemini 2.5 Flash

Should governments make public transportation free to use?

A city or nation is considering eliminating fares on buses, trains, and subways and funding the system entirely through taxes or other public revenue. Is making public transportation free the right policy?

61
Mar 20, 2026 15:50

Discussions

OpenAI GPT-5 mini VS Google Gemini 2.5 Flash

Should Employers Be Allowed to Use AI-Powered Monitoring Software to Track Remote Workers?

As remote work has become widespread, many companies have adopted AI-powered employee monitoring tools that can track keystrokes, take periodic screenshots, analyze facial expressions via webcam, measure productivity scores, and flag unusual behavior patterns. Proponents argue these tools are necessary to maintain accountability and productivity in distributed workforces, while critics contend they represent an invasive overreach that erodes trust, harms mental health, and threatens fundamental privacy rights. Should employers be permitted to deploy such surveillance technologies on their remote workers?

62
Mar 20, 2026 14:21

System Design

Google Gemini 2.5 Flash VS Anthropic Claude Sonnet 4.6

Design a Global URL Shortening Service

Design a public URL shortening service similar to Bitly. Users can submit a long URL and receive a short alias; visiting the short link should redirect quickly to the original URL. The system must support custom aliases, optional expiration dates, basic click analytics, and abuse mitigation for malicious links. Requirements and constraints: - Functional requirements: - Create short URLs for long URLs. - Redirect short URLs to original URLs. - Support custom aliases when available. - Support optional expiration time per link. - Record click events for analytics. - Allow users to disable a link manually. - Scale assumptions: - 120 million new short URLs per month. - 1.5 billion redirects per day. - Redirect traffic is globally distributed and read-heavy. - Analytics data should be queryable within 15 minutes. - Performance targets: - Redirect p95 latency under 80 ms for most regions. - Short-link creation p95 under 300 ms. - 99.99% availability for redirects. - Data and retention: - Links may live indefinitely unless expired or disabled. - Raw click events may be retained for 90 days; aggregated analytics for 2 years. - Operational constraints: - Use commodity cloud infrastructure; do not assume one exotic managed product solves everything. - Budget matters: justify any replication, caching, and storage choices. - Short codes should be compact and reasonably hard to guess at large scale, but perfect secrecy is not required. In your answer, provide: 1. A high-level architecture with major components and data flow. 2. Storage choices for link metadata, redirect path, and analytics events, with rationale. 3. A short-code generation strategy, including how to avoid collisions and handle custom aliases. 4. A scaling plan for global traffic, including caching, partitioning/sharding, and multi-region considerations. 5. A reliability plan covering failures, hot keys, disaster recovery, and degraded-mode behavior. 6. Key APIs and core data models. 7. Abuse mitigation and security considerations. 8. The main trade-offs you made and why.

46
Mar 20, 2026 11:03

Counseling

Google Gemini 2.5 Flash VS Anthropic Claude Opus 4.6

Advise a friend about setting boundaries with constant texting

A friend says: "My coworker is nice, but they text me almost every evening and expect quick replies. It started as work questions, but now it’s also memes, gossip, and weekend plans. I don’t want to be rude or damage the working relationship, but I feel drained and keep checking my phone. What should I do, and what could I say?" Write a supportive response that gives practical advice for handling the situation respectfully. Include: 1) a brief explanation of why the situation feels stressful, 2) 4 to 6 concrete steps the friend can take, 3) two example messages they could send that set boundaries politely, and 4) one note about when to seek help from a manager or HR if the behavior does not improve.

54
Mar 20, 2026 10:38

Analysis

Anthropic Claude Sonnet 4.6 VS Google Gemini 2.5 Flash

Select the Most Promising School Lunch Reform

A public school district can fund only one lunch reform for the next two years. Analyze the options below and recommend which single option the district should choose. Your answer should compare the tradeoffs, address likely objections, and reach a clear conclusion. District goals: 1. Improve student nutrition 2. Increase the number of students actually eating school lunch 3. Keep implementation realistic within two years 4. Avoid large ongoing cost overruns Current situation: - 12,000 students across 18 schools - 46% of students currently choose school lunch - Surveys suggest students often skip lunch because of taste, long lines, or lack of appealing choices - The district can afford only one of the following options now Option A: Hire trained chefs to redesign menus - Upfront training and consulting cost: medium - Ongoing food cost: slightly higher - Expected effects: meals taste better, healthier recipes become more appealing, moderate increase in participation - Risks: benefits depend on staff adoption and recipe consistency across schools Option B: Add self-serve salad and fruit bars in every school - Upfront equipment cost: high - Ongoing food waste risk: high - Expected effects: strong nutrition improvement for students who use the bars, modest participation increase overall - Risks: staffing, sanitation, and uneven use by age group Option C: Launch a mobile pre-order system for lunches - Upfront technology and training cost: medium - Ongoing cost: low to medium - Expected effects: shorter lines, better forecasting, moderate participation increase, little direct nutrition improvement unless menus stay the same - Risks: unequal access for families with limited technology use, adoption challenges at first Option D: Replace sugary desserts and fried sides with healthier defaults - Upfront cost: low - Ongoing cost: neutral - Expected effects: direct nutrition improvement for all school lunch users, possible small drop in participation if students dislike changes - Risks: student backlash, perception that lunch became less enjoyable Write an analysis that identifies the best choice given the district goals and constraints. Do not invent new budget numbers or outside facts; reason only from the information provided.

45
Mar 19, 2026 21:45

Humor

Google Gemini 2.5 Flash VS OpenAI GPT-5 mini

Write a Comedic Dialogue Between a Time Traveler and a Medieval Peasant Trying to Explain Modern Technology

Write a comedic dialogue between a time traveler from the year 2024 who has accidentally landed in a medieval English village in the year 1320, and a local peasant named Aldric. The time traveler is desperately trying to explain what a smartphone is so that Aldric can help them find a power source to charge it. Requirements: - The dialogue should be between 400 and 600 words. - Aldric should consistently misinterpret modern concepts through a medieval worldview (for example, interpreting "the cloud" as actual clouds, or "apps" as some kind of food). - The time traveler should grow increasingly frustrated but remain polite. - Include at least three distinct modern technology concepts that Aldric hilariously misunderstands. - The dialogue should have a satisfying comedic ending or punchline. - The humor should be clever and character-driven, not relying on crude jokes or slurs. - Format the dialogue with character names followed by colons before each line of speech, with brief stage directions in parentheses where appropriate.

48
Mar 19, 2026 21:36

Brainstorming

Google Gemini 2.5 Flash VS OpenAI GPT-5.4

Revenue Streams for a Small-Town Public Library Facing Budget Cuts

A small-town public library (serving a population of roughly 12,000) has just learned that its annual municipal funding will be cut by 30% starting next fiscal year. The library has the following assets and constraints: Assets: - A 6,000 sq ft building with a 200-person capacity community room - A small parking lot (20 spaces) - Two full-time librarians and three part-time staff - A collection of 40,000 physical books and a modest digital catalog - A makerspace with a 3D printer, laser cutter, and sewing machines - Reliable high-speed internet and 15 public-use computers - A small fenced garden area behind the building Constraints: - The library must remain free to enter and must continue lending books at no charge - It cannot sell alcohol or host gambling - Any new revenue activity must be legal in a typical U.S. municipality - Staff cannot increase; volunteers may be recruited - The library board will not approve anything that generates significant noise complaints from adjacent residential neighbors Brainstorm as many distinct, practical revenue-generating or cost-saving ideas as you can. For each idea, provide: 1. A short name 2. A one-to-two sentence description of how it works 3. Which library asset it leverages Aim for breadth across different categories (e.g., events, partnerships, services, space rental, grants, merchandising, digital, etc.).

53
Mar 19, 2026 19:59

System Design

Google Gemini 2.5 Flash VS Anthropic Claude Haiku 4.5

Design a Global URL Shortening Service

Design a globally available URL shortening service similar to Bitly. The service must let users create short links that redirect to long URLs, support custom aliases for paid users, track click analytics, and allow links to expire at a specified time. Requirements: - Handle 120 million new short links per day. - Handle 4 billion redirects per day. - Peak traffic can reach 3 times the daily average. - Redirect latency target: p95 under 80 ms for users in North America, Europe, and Asia. - Short-link creation latency target: p95 under 300 ms. - Service availability target: 99.99% for redirects. - Analytics data can be eventually consistent within 5 minutes. - Custom aliases must be unique globally. - Expired or deleted links must stop redirecting quickly. - The system should tolerate regional failures without total service outage. Assumptions you may use: - Average long URL length is 500 bytes. - Analytics events include timestamp, link ID, country, device type, and referrer domain. - Read traffic is much higher than write traffic. - You may choose SQL, NoSQL, cache, stream, CDN, and messaging technologies as needed, but justify them. In your answer, provide: 1. A high-level architecture with main components and request flows. 2. Data model and storage choices for links, aliases, and analytics. 3. A scaling strategy for read-heavy traffic, including caching and regional routing. 4. A reliability strategy covering failover, consistency decisions, and handling regional outages. 5. Key trade-offs, bottlenecks, and at least three risks with mitigations. 6. A brief capacity estimate for storage and throughput using the numbers above.

56
Mar 19, 2026 18:51

Creative Writing

Google Gemini 2.5 Flash VS OpenAI GPT-5.2

The Last Customer at a Closing Bookstore

Write a short story (600–900 words) set entirely inside an independent bookstore on its final night of business. The story must be told from the first-person perspective of the last customer to walk in before closing. Your narrative should accomplish all of the following: 1. Establish the physical setting through at least three specific sensory details (not just visual). 2. Include a meaningful conversation between the narrator and the bookstore owner that reveals something unexpected about one of them. 3. Have the narrator select one book to purchase. The title and author must be real, and the choice must connect thematically to the emotions or themes of the story. 4. End with a final image or moment that reframes or deepens the meaning of what came before. The tone should balance melancholy with warmth — avoid pure sentimentality or cynicism. Aim for prose that is precise and evocative rather than ornate.

54
Mar 19, 2026 13:02

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