Mistral AI · Released Mar 16, 2026Mistral Small 4
Fast Mistral production model for chat, extraction, and cost-sensitive agents.
- Capability
- —No ECI score yet
- Input
- $0.15per 1M tokens
- Output
- $0.60per 1M tokens
- Context
- 256K256K max output
What it costs
- Input
- $0.15per million tokens
- Output
- $0.60per million tokens
- Cached input
- $0.015per million tokens
- Blended (3:1)
- $0.263cheaper than 73% of priced models
Typical monthly bills
| Monthly usage | Estimated cost |
|---|---|
| Side project2M input + 0.5M output tokens | $0.60 |
| Team assistant25M input + 5M output tokens | $6.75 |
| Production app250M input + 50M output tokens | $67.50 |
Official Mistral API price, as listed on models.dev.
Independent benchmarks
Epoch AI has not published a Capabilities Index score for Mistral Small 4 yet.
The details
- Lab
- Mistral AI
- Released
- Mar 16, 2026
- Knowledge cutoff
- Jun 2025
- Context window
- 256,000 tokens
- Max output
- 256,000 tokens
- Inputs
- Text, Images
- Output
- Text
- Reasoning
- Adjustable effort high
- Tool calling
- Yes
- Structured output
- No
- Weights
- Open weights
- API model ID
mistral-small-2603on Mistral- Availability
- 16 API providerslisted on models.dev
What Mistral AI claims
Published by the lab at launch. Settings vary, so compare these only with care.
More from Mistral AI
About Mistral Small 4
How much does Mistral Small 4 cost?
Mistral Small 4 costs $0.15 input / $0.60 output per million tokens (official Mistral API price). Cached input is $0.015 per million tokens. At a 3:1 input-to-output mix that is $0.263 per million tokens, cheaper than 73% of the 360 priced models we track.
What is the context window of Mistral Small 4?
Mistral Small 4 accepts up to 256,000 tokens per request and can write up to 256,000 tokens in one response.
How good is Mistral Small 4?
Epoch AI has not published a Capabilities Index score for Mistral Small 4 yet.
Is Mistral Small 4 open source?
Yes. Mistral AI publishes the weights, so it can be downloaded and self-hosted.
What inputs does Mistral Small 4 support?
Mistral Small 4 accepts text and images and replies in text. It is a reasoning model with high effort settings, supports tool calling.
When was Mistral Small 4 released?
Mistral AI released Mistral Small 4 on Mar 16, 2026. Its training data runs to Jun 2025.
What are the best alternatives to Mistral Small 4?
The closest current models from other labs on capability, price and release date are Hy3 preview (Tencent, $0.176 / $0.586), Solar Pro 3 (Upstage, $0.25 / $0.25), Jamba Mini (AI21 Labs, $0.20 / $0.40) and Nemotron 3 Super 120B A12B (NVIDIA, $0.20 / $0.80).