Claude 3.5 Sonnet (upgraded) vs Devstral Small
Anthropic Claude 3.5 Sonnet (upgraded) | Mistral Devstral Small | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Mistral |
| Release date | Oct 22 2024 | May 21 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 24B |
| 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 211 days before Devstral Small | |
Which is better: Claude 3.5 Sonnet (upgraded) or Devstral Small?
Claude 3.5 Sonnet (upgraded) and Devstral Small 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 211 days before Devstral Small, so benchmark comparisons should account for the intervening progress.
Claude 3.5 Sonnet (upgraded) is proprietary, while Devstral Small is open weight.
Direct benchmark comparisons are unavailable — Claude 3.5 Sonnet (upgraded) and Devstral Small 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.
Devstral Small was released by Mistral on May 21 2025.
Claude 3.5 Sonnet (upgraded) is a proprietary model released by Anthropic. Devstral Small is an open weight model released by Mistral.