Claude 3.5 Sonnet (upgraded) vs Mistral Small 3.1
Anthropic Claude 3.5 Sonnet (upgraded) | Mistral Mistral Small 3.1 | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Mistral |
| Release date | Oct 22 2024 | Mar 17 2025 |
| Access | Proprietary | Open Weight |
| Benchmarks | ||
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. | 49% | — |
| Timeline | ||
| Release gap | Claude 3.5 Sonnet (upgraded) shipped 146 days before Mistral Small 3.1 | |
Which is better: Claude 3.5 Sonnet (upgraded) or Mistral Small 3.1?
Claude 3.5 Sonnet (upgraded) and Mistral Small 3.1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 3.5 Sonnet (upgraded) shipped 146 days before Mistral Small 3.1, so benchmark comparisons should account for the intervening progress.
Claude 3.5 Sonnet (upgraded) is proprietary, while Mistral Small 3.1 is open weight.
Direct benchmark comparisons are unavailable — Claude 3.5 Sonnet (upgraded) and Mistral Small 3.1 don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude 3.5 Sonnet (upgraded) was released by Anthropic on Oct 22 2024.
Mistral Small 3.1 was released by Mistral on Mar 17 2025.
Claude 3.5 Sonnet (upgraded) is a proprietary model released by Anthropic. Mistral Small 3.1 is an open weight model released by Mistral.