Mistral AI Ships Devstral 2 Coding Models And Mistral Vibe CLI For Agentic, Terminal Native Development
Mistral AI has launched Devstral 2, a subsequent era coding mannequin household for software program engineering brokers, along with Mistral Vibe CLI, an open supply command line coding assistant that runs contained in the terminal or IDEs that assist the Agent Communication Protocol.
Devstral 2 and Devstral Small 2, mannequin sizes, context and benchmarks
Devstral 2 is a 123B parameter dense transformer with a 256K token context window. It reaches 72.2 p.c on SWE-bench Verified, which locations it among the many strongest open weight fashions for software program engineering duties. The mannequin is launched as open weights below a modified MIT license and is at present free to make use of by way of the Mistral API.
Devstral Small 2 is a 24B parameter mannequin with the identical 256K context window. It scores 68.0 p.c on SWE-bench Verified and sits within the vary of fashions which can be as much as 5 occasions bigger in parameter rely. It is launched below the Apache 2.0 license, which is an ordinary permissive license for manufacturing use.
Both fashions are described as open supply and permissively licensed and are positioned as state-of-the-art coding fashions for agentic workloads. Mistral experiences that Devstral 2 is as much as 7 occasions extra value environment friendly than Claude Sonnet on actual world coding duties at related high quality, which is vital for steady agent workloads.
In phrases of mannequin measurement relative to frontier methods, Devstral 2 and Devstral Small 2 are 5 occasions and 28 occasions smaller than DeepSeek V3.2, and eight occasions and 41 occasions smaller than Kimi K2.
Built for manufacturing grade coding workflows
Devstral 2 is designed for software program engineering brokers that have to discover repositories, monitor dependencies and orchestrate edits throughout many information whereas sustaining structure degree context. The mannequin can detect failures, retry with corrections and assist duties comparable to bug fixing or modernization of legacy methods at repository scale.
Mistral states that Devstral 2 will be fantastic tuned to favor particular programming languages or to optimize for very massive enterprise codebases. Devstral Small 2 brings the identical design objectives to a smaller footprint that’s appropriate for native deployment, tight suggestions loops and absolutely personal runtimes. It additionally helps picture inputs and may drive multimodal brokers that should purpose over each code and visible artifacts comparable to diagrams or screenshots.
Human evaluations in opposition to DeepSeek V3.2 and Claude Sonnet 4.5
To check actual world coding conduct, Mistral evaluated Devstral 2 in opposition to DeepSeek V3.2 and Claude Sonnet 4.5 utilizing duties scaffolded via the Cline agent device. In these human evaluations Devstral 2 exhibits a transparent benefit over DeepSeek V3.2 with a 42.8 p.c win fee versus a 28.6 p.c loss fee.
Mistral Vibe CLI, a terminal native coding agent
Mistral Vibe CLI is an open supply command line coding assistant written in Python and powered by Devstral fashions. It explores, modifies and executes modifications throughout a codebase utilizing pure language within the terminal, or inside IDEs that assist the Agent Communication Protocol comparable to Zed the place it’s obtainable as an extension.The venture is launched below the Apache 2.0 license on GitHub.
Vibe CLI offers a chat type interface on prime of a number of key instruments:
- Project conscious context, it scans the file construction and Git standing to construct a working view of the repository.
- Smart references, it helps
@autocomplete for information,!for shell instructions and slash instructions for configuration modifications. - Multi file orchestration, it causes over the complete codebase, not solely the lively buffer, to coordinate structure degree modifications and scale back pull request cycle time.
- Persistent historical past, autocompletion and themes tuned for each day use within the terminal.
Developers configure Vibe CLI via a easy config.toml file the place they will level to Devstral 2 by way of the Mistral API or to different native or distant fashions. The device helps programmatic runs, auto approval toggles for device execution and granular permissions in order that dangerous operations in delicate repositories require affirmation.
Key Takeaways
- Devstral 2 is a 123B parameter dense coding mannequin with 256K context, it reaches 72.2 p.c on SWE bench Verified and is launched as open weights below a modified MIT license.
- Devstral Small 2 has 24B parameters with the identical 256K context, it scores 68.0 p.c on SWE bench Verified and makes use of an Apache 2.0 license for simpler manufacturing adoption.
- Both Devstral fashions are optimized for agentic coding workloads, they’re designed to discover full repositories, monitor dependencies and apply multi file edits with failure detection and retries.
- Mistral Vibe CLI is an open supply Python based mostly terminal native coding agent that connects to Devstral, it offers venture conscious context, sensible references and multi file orchestration via a chat type interface within the terminal or IDEs that assist the Agent Communication Protocol.
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