Mistral AI · llm model
Mistral Small 4
Mistral Small 4 is a Mistral AI language model released Mar 16, 2026; Mistral AI's newest language model in our dataset is Mistral Large 4. Open weights (Apache 2.0). Mistral's hybrid model unifying instruct, reasoning and coding in one multimodal model, released Mar 16, 2026 under Apache 2.0. Verified against vendor sources on Oct 26, 2026.
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- ReleasedMar 16, 2026
- Context window256K256,000 tokens
- LicenceOpen weightsApache 2.0
Modalities not verified
Key facts
| Fact | Value | Source |
|---|---|---|
| Vendor | Mistral AI | n/a |
| Released | Mar 16, 2026 | source |
| Status | generally available | n/a |
| API id | mistral-small-2603 | source |
| Context window | 256,000 tokens (256K) | source |
| Parameters | 119B total, 6.5B active | source |
| Licence | Apache 2.0 (open weights) | source |
| Pricing | $0.15 in / $0.6 out per 1M tokens | source |
Where Mistral Small 4 sits in our data
- Released Mar 16, 2026 (week 12 of 2026), in March 2026. Other models in our data released that month: Gemma 4, Cohere Transcribe, Voxtral TTS, GPT-5.4 mini, Grok 4.20, GPT-5.4.
- The previous Mistral AI model we track is Ministral 3 14B (Dec 2, 2025), 104 days earlier.
- Of the 60 models in our data with a published context window, Mistral Small 4 has the number 50 largest (256K tokens). Our data is not every model on the market.
- Mistral AI tools we cover: Mistral Le Chat.
- All releases by date: AI model releases by month · new AI models this week. Choosing for code: best LLM for coding.
How Mistral Small 4 differs from Mistral Large 4
Read from the recorded facts of the two models, not from a head-to-head test. We have not run either.
- Listed price is $0.15 in and $0.6 out, against $1.36 in and $4.18 out for Mistral Large 4 (per 1M tokens).
- Context window is 256K tokens against 1M for Mistral Large 4.
- Status is generally available, against public preview.
- Mistral Small 4 came out 204 days before Mistral Large 4.
- Facts for the other model: Mistral Large 4.
What we tested
Nothing yet. We have not run Mistral Small 4 ourselves, so every fact on this page is Reported from the sources below. When we do test it, the scope will be stated here and in our test logs. See methodology.
Sources
More from Mistral AI
- Mistral Large 4 (Oct 6, 2026)
- Voxtral TTS (Mar 23, 2026)
- Mistral Medium 3.5 (Apr 28, 2026)
- Ministral 3 14B (Dec 2, 2025)
- Voxtral 3 (Oct 20, 2026)