Codestral 22B vs Kimi K2 (0905)
Mistral Codestral 22B | Moonshot AI Kimi K2 (0905) | |
|---|---|---|
| Overview | ||
| Company | Mistral | Moonshot AI |
| Release date | May 29 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 | Codestral 22B shipped 464 days before Kimi K2 (0905) | |
Which is better: Codestral 22B or Kimi K2 (0905)?
Codestral 22B and Kimi K2 (0905) don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Codestral 22B shipped 464 days before Kimi K2 (0905), so benchmark comparisons should account for the intervening progress.
Codestral 22B is proprietary, while Kimi K2 (0905) is open weight.
Direct benchmark comparisons are unavailable — Codestral 22B and Kimi K2 (0905) don't publish scores on any of the same benchmarks.
Frequently asked questions
Codestral 22B was released by Mistral on May 29 2024.
Kimi K2 (0905) was released by Moonshot AI on Sep 5 2025.
Codestral 22B is a proprietary model released by Mistral. Kimi K2 (0905) is an open weight model released by Moonshot AI.
Other comparisons
Codestral 22B vs Claude Sonnet 5Kimi K2 (0905) vs Claude Sonnet 5Codestral 22B vs GPT-5.6 SolKimi K2 (0905) vs GPT-5.6 SolCodestral 22B vs Gemini OmniKimi K2 (0905) vs Gemini OmniCodestral 22B vs Muse Spark 1.1Kimi K2 (0905) vs Muse Spark 1.1Codestral 22B vs Grok 4.5Kimi K2 (0905) vs Grok 4.5Codestral 22B vs DeepSeek-V4-ProKimi K2 (0905) vs DeepSeek-V4-Pro