Devstral 2 2512
Devstral 2 is a state-of-the-art open-source model by Mistral AI specializing in agentic coding. It is a 123B-parameter dense transformer model supporting a 256K context window.
Specifications
| Lab | Mistral AI |
|---|---|
| Context window | 262.1K tokens |
| Input price | $0.40/1M |
| Output price | $2.00/1M |
| Release | Dec 2025 |
Strengths
- State-of-the-art open-source agentic coding model
- 123B dense transformer with 256K context
- Specialized for software engineering workflows
- Strong extended thinking and self-correction
Weaknesses
- Narrower general capability than Mistral Large
- Primarily optimized for coding over general tasks
- Newer model with less real-world validation
Best for
- Agentic coding and software development
- Complex multi-file programming tasks
- Cost-effective alternative to closed coding models
- Open-source software engineering workflows
In Depth: Devstral 2 2512
Summary
Devstral 2 2512 is an AI model from Mistral AI.
Released in Dec 2025. It currently appears in the Overall category on LMRank. It takes text and file input and produces text output, with a context window of 262.1K tokens. Input pricing is $0.40 per 1M tokens and output is $2.00 per 1M tokens on OpenRouter.