Mistral AI
Devstral 2 is a state-of-the-art open-source model by Mistral AI specializing in agentic coding. It is a 123B-parameter dense transformer model supporting a 256K context window. Devstral 2 supports exploring...
Running this yourself: can likely run on your own machine.
Devstral 2 is a state-of-the-art open-source model by Mistral AI specializing in agentic coding.
OpenRouter
Price record: 2026-10-03. Source: openrouter.
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26.0
Quality Score
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Arena ELO
123B
Parameters
262K
Context
This measures the amount of verifiable public evidence we have, not how capable the model is. A missing field means it has not been verified yet, not that its value is zero.
13 of 22 public signals
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has normalized benchmark rows, so scores here are directly comparable across benchmark sources.
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Dec 2025
Released
3/5 signals
3/4 signals
4/5 signals
1/4 signals
2/4 signals
Gaps we are still tracking
These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.
devstral-2512 - SWE-Bench Verified
SWE-Bench Verified resolved rate 53.8
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