Input
$2.00
Output
$10.00
Source: Official pricing
Last checked: 2026-10-11
Claude Sonnet 5.5 vs Gemini 3.8 Flash Comparison & Evaluation
Claude Sonnet 5.5 and Gemini 3.8 Flash compared on the same 16 tasks of the latest snapshot: tasks won, average score and their debate at a glance.
Over the 16 tasks, Claude Sonnet 5.5 won 10, Gemini 3.8 Flash won 6, and 0 were drawn.
At a glance
Tasks won
Average score
Debate
No debate (different tiers)
Task by task
On each task the higher average of the judges wins; equal averages go to the most important criterion, then to the number of criteria won, otherwise a draw. Tasks won–lost–drawn over the 16 tasks.
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.
| Genre (task) | Claude Sonnet 5.5 | Gemini 3.8 Flash |
|---|---|---|
| Creative Writing | 7.13 | 18.06 |
| Coding | 19.73 | 9.12 |
| System Design | 18.20 | 7.90 |
| Education Q&A | 7.51 | 19.79 |
| Explanation | 19.05 | 9.00 |
| Summarization | 8.90 | 19.16 |
| Idea Generation | 7.26 | 17.60 |
| Roleplay | 18.61 | 8.32 |
| Business Writing | 19.71 | 9.44 |
| Planning | 19.46 | 8.66 |
| Analysis | 18.70 | 8.12 |
| Brainstorming | 8.47 | 18.48 |
| Persuasion | 19.22 | 5.12 |
| Humor | 7.98 | 18.03 |
| Empathy | 19.26 | 8.55 |
| Counseling | 18.06 | 8.04 |
Their debate
Debates are held only between models of the same tier, so these two did not debate.
Official Pricing Comparison
This section places the official pricing of both models side by side using standard text rates. Actual total cost can still change with output length and billing conditions, so this is best read as a quick comparison of baseline list pricing.
Input
$0.75
Output
$3.75
Source: Official pricing
Last checked: 2026-09-09
If you want a fuller view including measured cost and overall value, see the AI Pricing Comparison & Best Value Ranking.
AI Pricing ComparisonFairness / How This Comparison Was Built
Both models answered the same tasks under the same conditions. Every answer was scored by the same 3 judges, models from the providers being compared among them, and the score shown is their average. Translations are for reading only; scoring used the English originals.
See fairness policy