Devstral SmallOpen Weight
Released
Devstral Small is an AI model released by Mistral on Wednesday, May 21 2025, 14 days after Mistral Medium 3. It is an open-weight model — the trained weights are available to download and run. It is a 24B parameter model.
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Frequently asked questions
Devstral Small was released by Mistral on Wednesday, May 21 2025.
Devstral Small was built by Mistral. French AI company building open and commercial models. Founded in 2023 by former Meta and DeepMind researchers.
Devstral Small is reported at 24B parameters.
Partly. Devstral Small is an open-weight model: the trained weights are free to download and run locally or on your own infrastructure, but the training data and code are not fully released and the license may restrict some commercial uses. It is not open source in the strict sense.
Mistral's previous tracked release was Mistral Medium 3 on May 7 2025, 14 days earlier. It was followed by Magistral Small on Jun 10 2025.