Devstral Small 2 (24B)Open Weight
Released
Devstral Small 2 (24B) is an AI model released by Mistral on Tuesday, Dec 9 2025, the same day as Devstral 2 (123B). It is an open-weight model — the trained weights are available to download and run.
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Frequently asked questions
Devstral Small 2 (24B) was released by Mistral on Tuesday, Dec 9 2025.
Devstral Small 2 (24B) was built by Mistral. French AI company building open and commercial models. Founded in 2023 by former Meta and DeepMind researchers.
Partly. Devstral Small 2 (24B) 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 Devstral 2 (123B) on Dec 9 2025. It was followed by Mistral Small 4 on Mar 16 2026.