From the source
Mistral AI introduced Devstral, an agentic LLM for software engineering tasks built in collaboration with All Hands AI.
It outperforms all open-source models on SWE-Bench Verified with a score of 46.8% and is released under the Apache 2.0 license.
The model can run on a single RTX 4090 or a Mac with 32GB RAM and is available on the API as devstral-small-2505 at $0.1/M input tokens and $0.3/M output tokens.




