Devstral 2 is a 123B-parameter open-source coding model that achieved 72.2% on SWE-bench Verified, paired with Mistral Vibe CLI—a native coding assistant designed to solve software engineering tasks. Together, they provide a free, web-accessible AI tool for code generation and debugging.
What is Devstral 2?
Devstral 2 is an open-source, 123B-parameter large language model specialized for coding. It accepts natural language prompts and code snippets as input and generates code, explanations, or solutions. The model runs on web platforms and is developed by an unnamed team (open-source). Mistral Vibe CLI is its accompanying command-line interface that acts as a native coding assistant.
Key Features
- 123B Parameters — A large-scale model with 123 billion parameters, enabling complex code generation and understanding.
- 72.2% on SWE-bench Verified — Proven performance on a benchmark for software engineering tasks, indicating strong practical utility.
- Open-Source — The model weights and code are publicly available for download, modification, and self-hosting.
- Mistral Vibe CLI — A native command-line assistant that integrates with development environments to solve coding tasks in real time.
- Free to Use — Both the model and CLI are free, with no usage limits mentioned.
Who is it for?
- Software Developers — Use Devstral 2 to generate code snippets, fix bugs, or implement algorithms in various programming languages.
- Beginner Coders — Leverage the assistant as a learning tool to understand code examples and get step-by-step solutions.
- Open-Source Contributors — Integrate the model into custom workflows or self-host it for private code assistance.
What can you do with Devstral 2?
- Code Generation — Ask the model to write a function or script in Python, JavaScript, or other languages from natural language descriptions.
- Debugging — Paste error messages or faulty code to get corrected versions and explanations.
- Software Engineering Tasks — Use Mistral Vibe CLI to automate repetitive tasks like refactoring, test generation, or dependency management.
