Mistral Medium 3.5vsQwen3-Coder-Next
Mistral Medium 3.5 | Qwen3-Coder-Next | |
|---|---|---|
| Specifications | ||
Parameters | 128B | 80B |
Context window | 256k | 256k |
| Benchmarks | ||
Agentic coding SWE-Bench ProCan the AI fix real bugs in real software? It's handed actual problems from open-source projects and has to write code that genuinely solves them. Higher is better. | — | 44.3% |
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%Best | 70.6% |
Multilingual coding SWE-Bench MultilingualLike SWE-Bench, but the coding problems span many programming languages, not just one. Tests how broadly the AI can code. Higher is better. | — | 62.8% |
Agentic terminal coding Terminal-Bench 2.0Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? (Version 2.0 of the test.) Higher is better. | — | 36.2% |
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 | Qwen |
| Release date | Apr 29 2026 | Feb 3 2026 |
| Access | Open Weight | Open Weight |
Which is better: Mistral Medium 3.5 or Qwen3-Coder-Next?
Mistral Medium 3.5 leads Qwen3-Coder-Next on 1 of the 1 benchmark they both report (SWE-Bench Verified). Qwen3-Coder-Next shipped 85 days before Mistral Medium 3.5, so benchmark comparisons should account for the intervening progress.
Mistral Medium 3.5 has 128B parameters, while Qwen3-Coder-Next has 80B. Context windows are 256k (Mistral Medium 3.5) vs 256k (Qwen3-Coder-Next).
On SWE-Bench Verified, Mistral Medium 3.5 leads at 77.6% vs Qwen3-Coder-Next at 70.6%.
Frequently asked questions
Mistral Medium 3.5 was released by Mistral on Apr 29 2026.
Qwen3-Coder-Next was released by Qwen on Feb 3 2026.
Mistral Medium 3.5 leads on SWE-Bench Verified — Mistral Medium 3.5 77.6% vs Qwen3-Coder-Next 70.6%.
Mistral Medium 3.5 has a 256k context window; Qwen3-Coder-Next has 256k.
Other comparisons
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