Claude 3.5 Haiku vs Gemini 3.1 Flash
Anthropic Claude 3.5 Haiku | Google Gemini 3.1 Flash | |
|---|---|---|
| Overview | ||
| Company | Anthropic | |
| Release date | Oct 22 2024 | Feb 26 2026 |
| Access | Proprietary | Proprietary |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 50% | — |
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 40.6% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 41.6% | — |
| Timeline | ||
| Release gap | Claude 3.5 Haiku shipped 492 days before Gemini 3.1 Flash | |
Which is better: Claude 3.5 Haiku or Gemini 3.1 Flash?
Claude 3.5 Haiku and Gemini 3.1 Flash don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 3.5 Haiku shipped 492 days before Gemini 3.1 Flash, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
Direct benchmark comparisons are unavailable — Claude 3.5 Haiku and Gemini 3.1 Flash don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude 3.5 Haiku was released by Anthropic on Oct 22 2024.
Gemini 3.1 Flash was released by Google on Feb 26 2026.
Other comparisons
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