Claude 2.1vsMistral Medium 3.5
Claude 2.1 | Mistral Medium 3.5 | |
|---|---|---|
| Specifications | ||
Parameters | — | 128B |
Context window | 200k | 256k |
| 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. | — | 77.6% |
Community preference (code) Arena Elo (Code)Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | — | 1267 |
| Overview | ||
| Company | Anthropic | Mistral |
| Release date | Nov 21 2023 | Apr 29 2026 |
| Access | Proprietary | Open Weight |
Which is better: Claude 2.1 or Mistral Medium 3.5?
Claude 2.1 and Mistral Medium 3.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 2.1 shipped 890 days before Mistral Medium 3.5, so benchmark comparisons should account for the intervening progress.
Context windows are 200k (Claude 2.1) vs 256k (Mistral Medium 3.5). Claude 2.1 is proprietary, while Mistral Medium 3.5 is open weight.
Direct benchmark comparisons are unavailable — Claude 2.1 and Mistral Medium 3.5 don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude 2.1 was released by Anthropic on Nov 21 2023.
Mistral Medium 3.5 was released by Mistral on Apr 29 2026.
Claude 2.1 has a 200k context window; Mistral Medium 3.5 has 256k.
Claude 2.1 is a proprietary model released by Anthropic. Mistral Medium 3.5 is an open weight model released by Mistral.