Retired May 2026
Devstral Medium
Mistral AI's mid-size model for agentic software engineering, with an undisclosed parameter count.
Key Specifications
- Context window
- 128K tokens
- Max output
- 33K tokens
- Released
- Inputs
- Text
- Capabilities Show details
- Function calling Connect to external tools, APIs, and systems. Code execution Write and execute code in a sandboxed environment.
Frequently Asked Questions
What is Devstral Medium good for?
Agent-style software engineering across a codebase. Text in, text out.
When is Devstral Medium not a good fit?
Any new work: Mistral retired it from its API in May 2026. Closed weights, so no self-hosting, and no image input.
Can I self-host Devstral Medium?
No. Mistral does not publish the weights; Devstral Medium is available only through hosted APIs.
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