Devstral SmallvsKimi K2 (0905)
Devstral Small | Kimi K2 (0905) | |
|---|---|---|
| Specifications | ||
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one. | 24B | 1T |
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | — | 256k |
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | — | $0.60Novita |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | — | $2.50Novita |
| BenchmarksPublished by one model only | ||
SWE-Bench VerifiedCoding — Real 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% |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 75.1% |
| Overview | ||
| Company | Mistral | Moonshot AI |
| Release date | May 21 2025 | Sep 5 2025 |
| Access | Open Weight | Open Weight |
Other comparisons
Devstral SmallvsClaude Opus 5Kimi K2 (0905)vsClaude Opus 5Devstral SmallvsGPT-5.6 SolKimi K2 (0905)vsGPT-5.6 SolDevstral SmallvsGemini 3.7 FlashKimi K2 (0905)vsGemini 3.7 FlashDevstral SmallvsMuse GlimmerKimi K2 (0905)vsMuse GlimmerDevstral SmallvsGrok 4.6Kimi K2 (0905)vsGrok 4.6Devstral SmallvsDeepSeek-V4-Pro-0813Kimi K2 (0905)vsDeepSeek-V4-Pro-0813
Frequently asked questions
Devstral Small and Kimi K2 (0905) don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Devstral Small shipped 107 days before Kimi K2 (0905), so benchmark comparisons should account for the intervening progress.
Devstral Small has 24B parameters, while Kimi K2 (0905) has 1T.
Direct benchmark comparisons are unavailable — Devstral Small and Kimi K2 (0905) don't publish scores on any of the same benchmarks.
Devstral Small was released by Mistral on May 21 2025.
Kimi K2 (0905) was released by Moonshot AI on Sep 5 2025.