Devstral Small 2505
Mistral and All Hands AI's Apache-licensed 24B agentic software-engineering model for repository-scale tasks.
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Why this model scores 74.8
Agent-scaffold optimization and downloadable weights enable autonomous code changes in private deployments. Smaller size limits frontier capability while open licensing raises misuse and control difficulty.
News tied to Devstral Small 2505
The model score of 74.8 rates this model's risk profile. The overall Doom Index of 66.8 measures the complete temporally weighted evidence record. These values answer different questions.
Each article's current Doom Index contribution is divided equally among the exact models named on that article. This prevents multi-model evidence from being claimed in full on several model pages. Model risk scores use a bounded temporal offset around their technical profile, but never feed back into the overall index.
Mistral and All Hands release open agentic coding model Devstral
Mistral and All Hands AI released Devstral Small 2505 under Apache 2.0 for repository-scale software engineering through agent scaffolds such as OpenHands and SWE-Agent.
- Full item contribution
- +0.11
- Devstral Small 2505 equal share
- +0.11
Model score history
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R4
Doom Score 74.8
Exact-version evidence chronology replayed after run doombench-20261001-092213 under temporal-monthly-pressure-v4.
01 Oct 2026 -
R3
Doom Score 74.9
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-142416 under temporal-monthly-pressure-v4.
12 Aug 2026 -
R2
Doom Score 75.0
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-132112 under fixed-sensitivity-v3.
12 Aug 2026 -
R1
Doom Score 75.3
Initial exact profile for Devstral Small 2505.
12 Aug 2026