Devstral Small 2505
Summary
Devstral Small 2505 is an open-weight language model from Mistral AI, released on 7 May 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 | 7 May 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 2505 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 2505?
Devstral Small 2505 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 2505 open source?
Devstral Small 2505 is an open-weight model. Check the license terms before commercial use.
When was Devstral Small 2505 released?
Mistral AI released Devstral Small 2505 on 7 May 2025, according to models.dev.
Change history
No changes detected since we started tracking this model. We re-check every source daily.