Devstral-2-123B
by Mistral AI
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About
Devstral 2, released by Mistral AI in December 2025, is a dense transformer model built specifically for software engineering — trained on coding data to handle the full cycle of development work including code generation, debugging, refactoring, and code review. The Devstral line represents Mistral's strategy of releasing dedicated coding models alongside its general-purpose offerings, targeting professional developers who need a model optimized for the complexities and long context requirements of real-world codebases.
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Pricing Range
Input (per 1M)$1.00 -$1.00
Output (per 1M)$3.00 -$3.00
Providers1
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Timeline
ReleasedDec 9, 2025
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License & Family
License
Modified MIT
Performance Overview
Performance metrics and category breakdown
Overall Performance
1 benchmarks
Average Score
37.5%
Best Score
37.5%
High Performers (80%+)
0Performance Metrics
Max Context Window
264.2KTop Categories
Coding
37.5%
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All Benchmark Results for Devstral-2-123B
Complete list of benchmark scores with detailed information
| SWE-rebench | Coding | 37.50 | 37.5% | Unverified |