Mistral AI
Devstral is an agentic LLM for software engineering tasks built under a collaboration between Mistral AI and All Hands AI 🙌. Devstral excels at using tools to explore codebases, editing multiple files and power software engineering agents.
Running this yourself: likely needs a rented cloud gpu.
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37.6
Quality Score
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Arena ELO
24B
Parameters
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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.
17 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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2.2K
Downloads
868
Likes
May 2025
Released
4/5 signals
3/4 signals
4/5 signals
3/4 signals
3/4 signals
Parameters
24B
Training compute
Not reported
Dataset scale
Not reported
Base model
Not reported
Gaps we are still tracking
Metadata sources
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.
mistralai/Devstral-Small-2505 - SWE-Bench Verified
SWE-Bench Verified resolved rate 46.8
View source