Mistral releases Devstral2 and Mistral Vibe CLI (mistral.ai)

Article summary

Mistral AI has released Devstral 2, a next-generation coding model, and Mistral Vibe CLI, a native command-line coding assistant. Devstral 2 is a 123B-parameter dense transformer that achieves 72.2% on SWE-bench Verified, making it one of the best open-weight models. Devstral Small 2 is a 24B-parameter model that can run locally on consumer hardware. Both models are open-source and permissively licensed.

Main themes

• AI coding models
• Devstral 2 and Mistral Vibe CLI
• Open-source AI
• Coding efficiency
• LLM-assisted development
• Vibe coding

What commenters say

• The term 'vibe coding' originally meant not reviewing the code generated by AI models, but its definition has shifted to include any LLM-assisted development.
• Some developers believe that 'vibe coding' is a pejorative term and that reviewing the generated code is necessary for professional work.
• Others argue that 'vibe coding' can be a useful exercise to realize where models go wrong, but hard reviews are required for high-quality work.
• The use of AI models like Devstral 2 and Mistral Vibe CLI can increase coding efficiency, but some developers are concerned about the lack of control over the quality of the generated code.
• There is a debate about the effectiveness of different AI coding models, with some preferring Claude Code and others preferring Devstral 2 or Aider.
• Some developers are concerned that the military will use AI coding models for their own purposes, and that European companies like Mistral AI may be more resistant to this than US-based companies.
• The name 'Vibe CLI' implies a casual or careless approach to coding, which may not be suitable for professional work.
• The use of AI models in coding can lead to a shift in the way developers work, with more focus on high-level tasks and less on manual coding.