Devstral Small
Mistral's Apache-2.0 agentic coding model — small, fast, built for software engineering agents.
About
Devstral Small (May 2025) is Mistral AI's compact agentic coding model: designed for software engineering agents — multi-step code edits, tool use, and repository-level reasoning — in a small, fast package.
Apache 2.0 licensed — commercial use allowed (notably permissive for a Mistral release; contrast Codestral's MNPL). 1.9k Hugging Face downloads on the canonical checkpoint understates usage, which flows through Mistral's API and Le Chat. The agentic-coding positioning (rather than raw completion) reflects the 2025 shift toward models that work inside coding harnesses. For the larger sibling see devstral-2 (already in the catalog).
Specs
Context window
Pricing
Free quota
API access
Weights
Released
Benchmarks
Provider-claimed (Mistral): strong SWE-bench-style agentic performance for its size class — treat as provider-claimed. Independent standardized scores are limited.
Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.
Use cases
Trust score — 6/10
Scored 6/10 (metrics tier). Apache 2.0 from Mistral is genuinely notable, and the agentic-coding focus is well-positioned. Docked four points: (1) small direct adoption footprint (1.9k HF downloads); (2) benchmark claims are provider-reported; (3) overshadowed by the larger Devstral 2 and Qwen3-Coder-30B in the same niche; (4) limited independent evaluation. A solid permissive-licensed agent model, not a standout.
How the trust score is built
Full methodology →- Adoption · stars/downloads, log-scaled vs peers
- 5.3/10
- Maintenance · recency, releases, issue load
- 5.0/10
- Openness · license + docs
- 9.1/10
- Manual review · sanity read + red-flag check
- 6.0/10
- · HF downloads 1,887 (peer-normalized)
- · released 504 days ago
- · manual review: Apache-2.0 from Mistral is notable; small footprint; overshadowed by Devstral 2 and Qwen3-Coder-30B; license: Apache-2.0 (notably permissive for Mistral)