Mistral Small 4
Alias mistral-small-latest (v26.03). Announced Mar 16, 2026.
- Context window
- 256,000 tokens
- Input
- text, image
- Output
- text
- License
- apache-2.0
- Pricing
- input: $0.15 · output: $0.6 (per 1M tokens (USD)) source
- Verified
- 2026-09-29
How to call it
| Provider | Model id | Endpoint / URL | Docs |
|---|---|---|---|
| Mistral API | mistral-small-2603 | https://api.mistral.ai/v1/chat/completions | docs |
| OpenRouter | mistralai/mistral-small-2603 | openrouter.ai/mistralai/mistral-small-2603 | — |
| Hugging Face | — | huggingface.co/mistralai/Mistral-Small-4-119B-2603 | — |
| Web app | — | chat.mistral.ai | — |
Notable capabilities (2)
- Instruct + reasoning + coding unified: First Mistral model unifying Magistral (reasoning), Pixtral (multimodal) and Devstral (agentic coding) in one model; reasoning_effort none/high per request. source
- 119B MoE with ~6.5B active: 119B total / 6.5B active parameters, vision input, 256K context at $0.15/$0.6. source
Cheap, fast open model for most production workloads, with optional reasoning.
curl https://api.mistral.ai/v1/chat/completions -H "Authorization: Bearer $MISTRAL_API_KEY" -H "Content-Type: application/json" \
-d '{"model":"mistral-small-latest","messages":[{"role":"user","content":"Hello"}]}'
Sources: https://docs.mistral.ai/models/model-cards/mistral-small-4-0-26-03 , https://mistral.ai/news/mistral-small-4/
Other Mistral AI models
Mistral OCR 4.1 · Mistral Medium 3.5 · Voxtral TTS · Voxtral Transcribe 2 (Mini Transcribe V2 + Voxtral Realtime) · Mistral Large 3 · Codestral 25.08 · Voxtral Small · Robostral Navigate