Mistral Small 4 vs Kimi K2 Thinking
Mistral Mistral Small 4 | Moonshot AI Kimi K2 Thinking | |
|---|---|---|
| Overview | ||
| Company | Mistral | Moonshot AI |
| Release date | Mar 16 2026 | Nov 6 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. | — | 71.3% |
| Timeline | ||
| Release gap | Kimi K2 Thinking shipped 130 days before Mistral Small 4 | |
Which is better: Mistral Small 4 or Kimi K2 Thinking?
Mistral Small 4 and Kimi K2 Thinking don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Kimi K2 Thinking shipped 130 days before Mistral Small 4, so benchmark comparisons should account for the intervening progress.
Mistral Small 4 is proprietary, while Kimi K2 Thinking is open weight.
Direct benchmark comparisons are unavailable — Mistral Small 4 and Kimi K2 Thinking don't publish scores on any of the same benchmarks.
Frequently asked questions
Mistral Small 4 was released by Mistral on Mar 16 2026.
Kimi K2 Thinking was released by Moonshot AI on Nov 6 2025.
Mistral Small 4 is a proprietary model released by Mistral. Kimi K2 Thinking is an open weight model released by Moonshot AI.
Other comparisons
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