Mistral

Devstral Medium

Mistral devstral-medium
Model Information
Slug devstral-medium
LLM.txt View
Release Date July 10, 2025
Organization
Model Description
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.
Available at 8 Providers
Provider Type Model Name Original Model Input ($/1M) Output ($/1M) Free Actions
OpenRouter
OpenRouter
Chat Code
Devstral Medium
mistralai/devstral-medium $0.40 $2.00
Kilo Code
Kilo Code
Code
Mistral: Devstral Medium
mistralai/devstral-medium $0.40 $2.00
WaveSpeed AI
WaveSpeed AI
Chat Code
devstral-medium
mistralai/devstral-medium $0.44 $2.20
ValorGPT
ValorGPT
Devstral Medium
mistralai-devstral-medium - -
Yupp
Yupp
Chat
Devstral Medium (OpenRouter)
mistralai/devstral-medium - -
LangDB
LangDB
devstral-medium
devstral-medium - -
Blackbox AI
Blackbox AI
Code
blackboxai/mistralai/devstral-medium
blackboxai/mistralai/devstral-medium - -
Writingmate
Writingmate
Chat Code
Mistral: Devstral Medium
mistralai/devstral-medium - -