Mistral Small 4
- Next shutdown
- None setNo date on 1 platform
- List price · $ per 1M
- $0.15 in $0.60 outMistral API
- Context window
- 256Ktokens
- Released
- Mar 16, 2026Mistral AI
Dates on every platform
1 listings · a floor is the earliest possible date
| Platform | Model ID and status | Deprecated | Shuts down | Replacement |
|---|---|---|---|---|
| Mistral APIMistral AI: Mistral Small 4 model card (opens in a new tab) · checked Oct 14, 2026 | mistral-small-2603Active · also mistral-small-latest | – | None set | – |
Mistral's lifecycle policy gives General Availability models six months of deprecation notice.
What breaks when you move off Mistral Small 4
No breaking changes are recorded for Mistral Small 4.
List prices
$ per 1M tokens, with each price’s source
| Platform | Input | Cached | Output | In effect | Source |
|---|---|---|---|---|---|
Mistral APImistral-small-2603 | $0.15 | – | $0.60 | Mar 16, 2026Current | Mistral AI: API pricing (opens in a new tab) |
Change history
ShutdownMistral Small 3.2 and Magistral Small 1.2 retire from the Mistral APIMistral API1 break
mistral-small-2506 and magistral-small-2509 retired on 31 July 2026. Mistral names Mistral Small 4 as the replacement for both.
- Platform
- Mistral API
- Replacement
- Mistral Small 4
- Announced
- BehaviorMagistral models always returned thinking traces. Mistral Small 4 and Mistral Medium 3.5 reason through the reasoning_effort parameter: high returns a thinking chunk before the answer, none omits it.
Source: Mistral AI, Models Overview (opens in a new tab); Mistral AI, Native reasoning (deprecated) (opens in a new tab); Mistral AI, Reasoning (opens in a new tab)