Devstral Small
Summary
Devstral Small is an open-weight language model from Mistral AI, released on 10 Jul 2025. It accepts text and generates text, with a 128K-token context window and up to 128K output tokens per response. Mistral AI has deprecated this model.
Legacy model retained for compatibility with older integrations
Last verified 4 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | Mistral AI |
|---|---|
| Release date | 10 Jul 2025 [models.dev] |
| Status | Deprecated [models.dev] |
| Weights | Open weights [models.dev] |
| Context window | 128K (128,000 tokens) [models.dev] |
| Max output | 128K tokens [models.dev] |
| Knowledge cutoff | May 2025 [models.dev] |
| Input | Text [models.dev] |
| Output | Text [models.dev] |
| Reasoning mode | No [models.dev] |
| Tool calling | Yes [models.dev] |
Devstral Small API pricing by provider
USD per million tokens. Sorted by input price.
We do not currently track a paid API listing for this model.
Frequently asked questions
What is the context window of Devstral Small?
Devstral Small has a context window of 128,000 tokens (128K) and can generate up to 128,000 tokens in a single response, according to models.dev.
Is Devstral Small open source?
Devstral Small is an open-weight model. Check the license terms before commercial use.
When was Devstral Small released?
Mistral AI released Devstral Small on 10 Jul 2025, according to models.dev.
Change history
No changes detected since we started tracking this model. We re-check every source daily.