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Mistral Small 4 API pricing

Token prices on OpenRouter and at the provider’s list price, and what your own workload would cost per month.

Input
$0.15
Output
$0.60
Cached input
$0.015

OpenRouter, per 1M tokens. A dash means no listed price.

Your monthly cost

Your workload

90M input and 18M output tokens a month (30-day month; token counts are per request).

Assumes: 1,000 conversations a day, each sending about 3,000 tokens of history and instructions and receiving about 600 tokens of replies.

Input not in cache
$13.50
Output
$10.80
Total per month
$24.30
Per day
$0.81
Per request
$0.00081
Unit
Currency

The share you mark as “from cache” is billed at this model’s published cache-read price. Cache-write charges are not included. Compare this bill with other models.

Every price, with its source

OpenRouter price, per 1M tokens

Input
$0.15
Output
$0.60
Cached input (read)90% below the input price
$0.015
Batch (input / output)
$0.075 / $0.30
Context window
262,144 tokens
Maximum output
209,715 tokens
Accepts
text, image
Reasoning mode
yes
Intelligence Indexby Artificial Analysis, relayed by OpenRouter
11.3
Listed since
16 Mar 2026

Provider list price, per 1M tokens

Input / output
$0.15 / $0.60
Cached input (read)
$0.015

As recorded in the LiteLLM price table under mistral/mistral-small-2603, which cites the provider’s pricing page. It matches the OpenRouter price.

Collected from the OpenRouter models API (466 entries). 99 models are cross-checked against provider list prices in the LiteLLM price table.

About Mistral Small 4

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...

Description supplied by OpenRouter. Model id for the API: mistralai/mistral-small-2603

Mistral Small 4 against other models

Other Mistral models

Questions and answers

How much does Mistral Small 4 cost per million tokens?

At the collection of 3 Oct 2026, 08:40 UTC, OpenRouter listed Mistral Small 4 at $0.15 per million input tokens and $0.60 per million output tokens. The provider list price recorded by LiteLLM is $0.15 for input and $0.60 for output.

What would Mistral Small 4 cost per month?

For 1,000 requests a day with 3,000 input and 600 output tokens each, over a 30-day month and with no caching, the bill is $24.30. Change the numbers in the simulator on this page to match your own traffic.

Does Mistral Small 4 have a cheaper price for cached input?

Yes. Cached input is listed at $0.015 per million tokens, 90% below the normal input price.

What is the context window of Mistral Small 4?

262,144 tokens, with a maximum output of 209,715 tokens, as reported by OpenRouter.

Is there a batch price for Mistral Small 4?

Yes. OpenRouter lists a batch variant at $0.075 per million input tokens and $0.30 per million output tokens, for requests that can wait for an asynchronous answer.