Magistral Models by MistralAI
Last refreshed 2026-05-22. Next refresh: weekly.
Details
Capabilities
About
Magistral is Mistral AI’s first reasoning model family, released in open and enterprise variants and aimed at domain-specific, transparent, multilingual step-by-step reasoning. Magistral Small is a 24B open-weight reasoning model built on Mistral Small 3.1 with long chains of thought; Magistral Medium is the more powerful enterprise version. The line is positioned for multi-step professional work—structured calculation, logic, planning, and coding—with reasoning traces meant to be followed and verified in the user’s language.
Decision facts
- Best fit
- reasoningcodingstructured outputs
- Capability starting point
- Magistral Small 2506 with 128K context and reasoning
- Lowest tracked input
- Mistral Magistral Small 2509 · $0.500/1M · AWS Bedrock
- Closest related family
- Devstral
Current Variants
Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.
Use when the workload needs reasoning, 128K context, and 24B parameters.
| Model | Use when | Released | Signals | Status |
|---|---|---|---|---|
| Mistral Magistral Small 2509 | Use when the workload needs 24B parameters. | 2025-09 | 24B parameters | Current |
| Magistral Small 2506 | Use when the workload needs reasoning, 128K context, and 24B parameters. | 2025-06 | reasoning128K context24B parameters | Current |
Release Timeline
2 release groupsSpecifications(2 models)
| Model | Released | Context | Parameters | Reasoning |
|---|---|---|---|---|
| Mistral Magistral Small 2509 | 2025-09 | — | 24B | No |
| Magistral Small 2506 | 2025-06 | 128K | 24B | Yes |
Available From(3 providers)
Pricing
| Model | Provider | Input / 1M | Output / 1M | Type |
|---|---|---|---|---|
| Mistral Magistral Small 2509 | AWS Bedrock | $0.5 | $1.5 | Serverless |
| Mistral Magistral Small 2509 | Vercel AI Gateway | $0.5 | $1.5 | Serverless |
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