# 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.

Last verified: 2026-10-26 · Evidence: Reported · Canonical: https://theagenticweekly.com/models/mistral-small-4 · JSON: https://theagenticweekly.com/api/models/mistral-small-4

## Key facts

| Fact | Value | Source |
|---|---|---|
| Vendor | Mistral AI |  |
| Released | Mar 16, 2026 | https://docs.mistral.ai/getting-started/changelog |
| API id | `mistral-small-2603` | https://docs.mistral.ai/models/mistral-small-4-0-26-03 |
| Context window | 256,000 tokens (256K) | https://docs.mistral.ai/models/mistral-small-4-0-26-03 |
| Parameters | 119B total, 6.5B active | https://docs.mistral.ai/models/mistral-small-4-0-26-03 |
| Licence | Apache 2.0 (open weights) | https://docs.mistral.ai/models/mistral-small-4-0-26-03 |
| Pricing | $0.15 in / $0.6 out per 1M tokens | https://docs.mistral.ai/models/mistral-small-4-0-26-03 |

## What we tested

Nothing yet. We have not run Mistral Small 4 ourselves, so every fact here is Reported from the sources below.

## Sources

- [Mistral changelog](https://docs.mistral.ai/getting-started/changelog)
- [Mistral model card: Small 4](https://docs.mistral.ai/models/mistral-small-4-0-26-03)

Data licence: CC BY 4.0. Data: Agentic Weekly (https://theagenticweekly.com), CC BY 4.0.