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Devstral Small 2 overview and key facts (October 2026)

Mistral AI's open coding model for software engineering agents, running with 24 billion parameters on an RTX 4090 or a 32 GB Mac.

AI modelLocal & Open-Weight LLMsCoding modelsSmall models
Free
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What is Devstral Small 2?

Devstral Small 2 is an open-weight coding model from Mistral AI for agentic software engineering, compact enough to run locally on a single high-end GPU or a Mac with 32 GB of memory.

The 24-billion-parameter instruct model is tuned for using tools to explore codebases, edit multiple files and power coding agents. It has a 256,000-token context, adds vision input compared with Devstral Small 1.1 and shares its architecture with Ministral 3. Mistral reports 68.0 percent on SWE-bench Verified. It is released in FP8 under Apache 2.0 and had more than 300,000 downloads in the last month at our check.

Devstral Small 2 AI features and use cases

  • Runs a local coding agentDevelopers connect the model to agent tools and let it change code across files. Source code never leaves the developer's machine.
  • Explores unfamiliar codebasesThe model reads and navigates a repository through tools. New team members understand legacy code faster.
  • Reads screenshots and diagramsVision input lets it take UI screenshots or architecture diagrams into account. Front-end fixes can start from an image of the problem.

What sets Devstral Small 2 apart

  • Runs on a single RTX 4090 or a Mac with 32 GB RAM, according to Mistral.
  • Apache 2.0 license for commercial use.

Where Devstral Small 2 is strongest

France Available internationally

Mistral AI is registered in Paris.

Questions to ask before you buy Devstral Small 2

Self-hosting means your team runs, secures and updates the model, including GPU capacity, monitoring and patching. Check the license terms for commercial use and keep a record of which version you deploy. If outputs feed decisions about people, a human must stay in the loop. Review generated code before merging it.

Using Devstral Small 2 in the EU: GDPR and AI Act

  • Data locationNot published by the vendor.
  • Data processing agreementNot published by the vendor: ask for one (Art. 28 GDPR).
  • EU AI ActCheck whether the AI prepares decisions about people. If not, the high-risk rules usually do not apply. The high-risk obligations apply from December 2, 2027 (Digital Omnibus).
General information with sources, not legal advice.

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Questions about Devstral Small 2

What hardware does Devstral Small 2 need?

Mistral states a single RTX 4090 or a Mac with 32 GB RAM.

Can I use it commercially?

Yes. It is licensed under Apache 2.0.

How does it score on coding benchmarks?

Mistral reports 68.0 percent on SWE-bench Verified.

Devstral Small 2 update historyno updates yet

No changes recorded for Devstral Small 2 yet.

Changes the vendor made and confirmed user reports, each checked against the vendor's own pages. We review every tool monthly.

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