Mistral Medium 3.5vsKimi Chat
Mistral Medium 3.5 | Kimi Chat | |
|---|---|---|
| Specifications | ||
Parameters | 128B | — |
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. | 77.6% | — |
Community preference (code) Arena Elo (Code)Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | 1267 | — |
| Overview | ||
| Company | Mistral | Moonshot AI |
| Release date | Apr 29 2026 | Oct 9 2023 |
| Access | Open Weight | Proprietary |
Which is better: Mistral Medium 3.5 or Kimi Chat?
Mistral Medium 3.5 and Kimi Chat don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Kimi Chat shipped 933 days before Mistral Medium 3.5, so benchmark comparisons should account for the intervening progress.
Mistral Medium 3.5 is open weight, while Kimi Chat is proprietary.
Direct benchmark comparisons are unavailable — Mistral Medium 3.5 and Kimi Chat don't publish scores on any of the same benchmarks.
Frequently asked questions
Mistral Medium 3.5 was released by Mistral on Apr 29 2026.
Kimi Chat was released by Moonshot AI on Oct 9 2023.
Mistral Medium 3.5 is an open weight model released by Mistral. Kimi Chat is a proprietary model released by Moonshot AI.
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