Mistral Small vs Kimi K2 (0905)
Mistral Mistral Small | Moonshot AI Kimi K2 (0905) | |
|---|---|---|
| Overview | ||
| Company | Mistral | Moonshot AI |
| Release date | Feb 26 2024 | Sep 5 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 1T |
Context window | — | 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. | — | 65.8% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 75.1% |
| Timeline | ||
| Release gap | Mistral Small shipped 557 days before Kimi K2 (0905) | |
Which is better: Mistral Small or Kimi K2 (0905)?
Mistral Small and Kimi K2 (0905) don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Small shipped 557 days before Kimi K2 (0905), so benchmark comparisons should account for the intervening progress.
Mistral Small is proprietary, while Kimi K2 (0905) is open weight.
Direct benchmark comparisons are unavailable — Mistral Small and Kimi K2 (0905) don't publish scores on any of the same benchmarks.
Frequently asked questions
Mistral Small was released by Mistral on Feb 26 2024.
Kimi K2 (0905) was released by Moonshot AI on Sep 5 2025.
Mistral Small is a proprietary model released by Mistral. Kimi K2 (0905) is an open weight model released by Moonshot AI.
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