Devstral Small 2
MistralMistralOpen WeightApache 2.0 · Commercial OK
Description
Devstral Small 1.1 (also called devstral-small-2507) is based on the Mistral-Small-3.1 foundation model and contains approximately 24 billion parameters. It supports a 128k token context window, which allows it to handle multi-file code inputs and long prompts typical in software engineering workflows. The model is fine-tuned specifically for structured outputs, including XML and function-calling formats. This makes it compatible with agent frameworks such as OpenHands and suitable for tasks like program navigation, multi-step edits, and code search. It is licensed under Apache 2.0 and available for both research and commercial use.
Release Date
2025-12-09
Parameters
24.0B
Context Length
131K
Modalities
text
Capability Radar
32
general
26
coding
37
reasoning
35
scienceest.
0
agents
0
multimodal
Science uses a reasoning proxy when dedicated science benchmarks are unavailable.
Rankings
| Domain | #Rank | Score | Source |
|---|---|---|---|
| Code Ranking | 240 | 34.0 | AA |
| General Ranking | 297 | 36.0 | AA |
| Math Reasoning | 246 | 35.0 | AA |
| Science | 307 | 35.0 | AA |
Benchmark Scores (LLM Stats)
Code
SWE-Bench Verified
53.6%SR
AA Evaluation Indices
Math Index34.3
Coding Index20.7
Intelligence Index19.5
Mmlu Pro0.7
Gpqa0.5
Livecodebench0.3
Aime 250.3
Ifbench0.3
Scicode0.3
Lcr0.2
Tau20.2
Terminalbench Hard0.2
Hle0.0
LLM Stats Category Scores
Code50
Frontend Development50
Reasoning50
Pricing
Input PriceFree
Output PriceFree
Blended Price (3:1)Free
Speed
Tokens/sec61.2 tokens/s
Time to First Token0.56s
Time to Answer0.56s
Available Providers
(LS internal units)No provider data available