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Devstral 2

Devstral 2 is Mistral’s next-generation 123B-parameter dense transformer coding model with a 256K context window, released together with the 24B Devstral Small 2 under permissive open-source licenses. It targets code agents, reaches about 72 percent on SWE-bench Verified, and supports exploration of large codebases plus image inputs. Combined with Mistral Vibe CLI, an Apache-2.0 open-source terminal assistant, it can scan projects, modify multiple files, run shell commands and coordinate end-to-end software engineering tasks through a project-aware natural-language chat interface.
New Text Gen 7
Released: December 12, 2025

Overview

Devstral 2 is Mistral AI’s 123B open-weight coding model family, paired with the open-source Mistral Vibe CLI agent, to explore, edit and execute changes across large codebases with a 256K context window for autonomous software engineering workflows

About Mistral AI

Mistral AI is a company that specializes in artificial intelligence and machine learning solutions.

Industry: Technology, Information and Internet
Company Size: 350
Location: Paris, FR
Website: mistral.ai
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Tools using Devstral 2

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Last updated: December 12, 2025
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