Devstral 2 is a large-scale agentic language model purpose-built for software engineering tasks, excelling at codebase exploration, multi-file editing, and tool-driven automation. With 123B parameters and FP8 instruct tuning, it delivers strong instruction following for chat-based workflows, coding assistants, and autonomous developer agents. The model demonstrates outstanding performance on SWE-bench, validating its effectiveness in real-world engineering scenarios. It generalizes well across diverse prompts, languages, and development environments, making it adaptable to a wide range of coding workflows. Devstral 2 supports a 256k context window, enabling deep understanding of large repositories, long diffs, and extended technical discussions. It integrates seamlessly with agent frameworks and developer tools, including the Mistral Vibe CLI, enabling terminal-based automation and interactive development workflows.
Features
- Agentic coding model optimized for software engineering and automation workflows
- 123B-parameter FP8 instruct model tuned for high-quality instruction following
- Strong SWE-bench performance for real-world coding and debugging tasks
- Excellent tool usage for codebase navigation, refactoring, and multi-file editing
- Large 256k context window for long repositories and extended technical reasoning
- Improved generalization across diverse prompts and development environments
- Compatible with popular agent frameworks and the Mistral Vibe CLI
- Supports local deployment and API usage across vLLM, SGLang, Transformers, and more