How much does Mistral Small 4 cost?

Mistral Small 4 costs $0.15 per million input tokens and $0.60 per million output tokens on standard pricing. A workload of 20M input and 5M output tokens a month is about $6.00.

What is the context length of Mistral Small 4?

Mistral Small 4 accepts up to 262,144 tokens (262K) of input and can return up to 209,715 tokens in one response.

Does Mistral Small 4 support tool calling and structured outputs?

Yes, Mistral Small 4 supports function/tool calling and structured (JSON) outputs. Supported tools: Function calling, Structured outputs, JSON mode, Reasoning, Deterministic seed, Prompt caching.

What inputs and outputs does Mistral Small 4 support?

Mistral Small 4 accepts Text, Image as input and produces Text as output.

When was Mistral Small 4 released?

Mistral Small 4 was released by Mistral AI in 2026-03-16.

Mistral Small 4

mistral-small-2603

API Provider site

Mistral Small 4 is the next major release in the Mistral Small family, unifying the capabilities of several flagship Mistral models into a single system. It combines strong reasoning from... Built by Mistral AI.

Prices updated recently

Input price

$0.15

per 1M tokens · Standard

Output price

$0.60

per 1M tokens · Standard

Input limit

262K

tokens

Output limit

210K

tokens

Input formats

TextImageVideoAudioPDF

Output formats

TextImageVideoAudioPDF

Compare

Mistral Small 4 price history

2 price records since 9/25/2026

Mistral Small 4 cost calculator

Input20M tokens

Output5M tokens

$6.00/month

Standard pricing

Overview

What is Mistral Small 4?

Mistral Small 4 is a text & reasoning and vision model from Mistral AI. Mistral Small 4 is the next major release in the Mistral Small family, unifying the capabilities of several flagship Mistral models into a single system. It combines strong reasoning from... Its 262K context window and $0.15 input price make it a candidate for cost-sensitive, high-throughput applications.

Image understandingDocument analysisContent workflowsClassification

Rates

Mistral Small 4 pricing

Pricing is based on token usage. Provider-specific caching, batch, regional, and tool charges may affect the final cost.

Input · Standard

$0.15

Per 1M tokens

Cached input · Standard

$0.01

Per 1M tokens

Capabilities

Mistral Small 4 Tools

Tools available when using Mistral Small 4 through supported provider APIs.

Function calling

Supported

Structured outputs

Supported

JSON mode

Supported

Reasoning

Supported

Built-in web search

Not supported

Log probabilities

Not supported

Deterministic seed

Supported

Parallel tool calls

Not supported

Prompt caching

Supported

Strengths and limitations

Strengths

Low input cost at $0.15 per million tokens suits high-volume workloads.
262K context supports large documents, repositories and extended conversations.
Supports text & reasoning and vision workloads in one model.

Limitations

Generated tokens cost 4× more than input tokens, which matters for verbose responses.
Large context capacity does not guarantee consistent retrieval across the entire prompt.
Arena Elo and MMLU-Pro are directional; test accuracy, latency and reliability on your own workload before committing.

Arena Elo, MMLU-Pro and pricing figures are illustrative; validate current vendor terms before purchase.

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