Codestral 22B vs Kimi K2
Mistral Codestral 22B | Moonshot AI Kimi K2 | |
|---|---|---|
| Overview | ||
| Company | Mistral | Moonshot AI |
| Release date | May 29 2024 | Jul 11 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 1T |
Context window | — | 128k |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 10% |
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 408 days before Kimi K2 | |
Which is better: Codestral 22B or Kimi K2?
Codestral 22B and Kimi K2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Codestral 22B shipped 408 days before Kimi K2, so benchmark comparisons should account for the intervening progress.
Codestral 22B is proprietary, while Kimi K2 is open weight.
Direct benchmark comparisons are unavailable — Codestral 22B and Kimi K2 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 was released by Moonshot AI on Jul 11 2025.
Codestral 22B is a proprietary model released by Mistral. Kimi K2 is an open weight model released by Moonshot AI.
Other comparisons
Codestral 22B vs Claude Sonnet 5Kimi K2 vs Claude Sonnet 5Codestral 22B vs GPT-5.6 SolKimi K2 vs GPT-5.6 SolCodestral 22B vs Gemini OmniKimi K2 vs Gemini OmniCodestral 22B vs Muse Spark 1.1Kimi K2 vs Muse Spark 1.1Codestral 22B vs Grok 4.5Kimi K2 vs Grok 4.5Codestral 22B vs DeepSeek-V4-ProKimi K2 vs DeepSeek-V4-Pro