Mistral AI has launched Devstral 2, a new family of coding models that includes two versions: the larger Devstral 2 with 123 billion parameters and the smaller Devstral Small 2 with 24 billion parameters. Devstral 2 is open-source under a modified MIT license, while Small 2 uses the Apache 2.0 license. Both models are designed to be cost-efficient and are available for free via API, with plans for pricing after an introductory period. The models are highlighted for their performance, achieving 72.2% on SWE-bench Verified for Devstral 2 and 68.0% for Small 2, making them competitive against larger models. The new Mistral Vibe CLI enhances the usability of Devstral by offering a command-line interface for automating coding tasks. It allows users to interact with their codebase using natural language, offering features like project-aware context, smart references, and multi-file orchestration. This makes it easier to manage code changes and improves efficiency during development. Vibe CLI can be integrated into various IDEs, providing a flexible tool for developers. Devstral 2 is optimized for deployment on high-end GPUs, needing at least four H100-class GPUs, while Small 2 can run on consumer-grade GPUs or even CPU-only systems. This flexibility lowers the barrier for individual developers and small businesses to leverage advanced coding capabilities. The article emphasizes that these models are not only smaller than competitors but also capable of matching or exceeding their performance, which could change how coding tools are approached in open-source environments.