Mistral AI
Devstral 2
mistralai/devstral-2512
Open-source 123B model for agentic coding across a repository.
TextText, Files → TextReady on endue
- Coding
- Agentic work
- Open weights
Overview
Good for
Written by endue
- Coding
- Agentic work
- Open weights
Not ideal for
From the model’s specs
- No reasoning mode, so it is weaker on multi-step problems.
Capabilities
| Tool use | Supported |
|---|---|
| Structured output | Supported |
| JSON mode | Supported |
| Reasoning | Not supported |
| Vision | Not supported |
| Audio input | Not supported |
| Video input | Not supported |
| File input | Supported |
| Long context | Supported |
Specifications
- Model ID
mistralai/devstral-2512- Family
- Devstral
- Context window
- 262K tokens
- Input
- Text, Files
- Output
- Text
- Released
- 2025-12-09