Mistral: Devstral Medium

Mistral AIID: mistralai/devstral-medium

Devstral Medium is a high-performance code generation and agentic reasoning model developed jointly by Mistral AI and All Hands AI. Positioned as a step up from Devstral Small, it achieves 61.6% on SWE-Bench Verified, placing it ahead of Gemini 2.5 Pro and GPT-4.1 in code-related tasks, at a fraction of the cost. It is designed for generalization across prompt styles and tool use in code agents and frameworks. Devstral Medium is available via API only (not open-weight), and supports enterprise deployment on private infrastructure, with optional fine-tuning capabilities.

Pricing per 1M Tokens

Input (Prompt)$0.40
Output (Completion)$2.00
Cache Read$0.04
Cache WriteFree
ImageN/A

Specifications

Context Length131K
Max Output TokensN/A
Input ModalitiesText
Output ModalitiesText
TokenizerMistral
Instruct TypeN/A
Top Provider Context131K
Top Provider Max OutputN/A
ModeratedNo

Compare this model

See how Mistral: Devstral Medium stacks up against other models.

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Last updated: March 23, 2026

First tracked: March 23, 2026