// mistralai

Mistral Medium 3.1

mistralai/mistral-medium-3.1

tool callingimage inputfile inputprompt caching
OpenRouter + LiveBenchAll modelsFull leaderboard

Mistral Medium 3.1 costs $0.400 per 1M input tokens and $2.00 per 1M output tokens with a 131K-token context window.

A tool-calling model from mistralai, released Aug 13, 2025. LiveBench hasn't published a run for it, so this page carries measured price and specs only — no benchmark numbers.

Input / 1M
$0.400
Output / 1M
$2.00
Context
131K
LiveBench overall
Not evaluated

Specs and pricing

Input price

USD per 1M prompt tokens

$0.400
Output price

USD per 1M completion tokens, reasoning included

$2.00
Blended price

3:1 input:output — #159 most expensive of 343 listed models

$0.800
Cached input read

Blank means not priced separately — not free

$0.040
Cache write
Context window131,072 tokens
Max output104,857 tokens
Input modalitiestext, image, file
Tool callingYes
Extended reasoningNo
Knowledge cutoff2025-06-30
ListedAug 13, 2025
All Mistral API pricing

Also listed as mistralai/mistral-medium-3.1:batch ($0.400 blended)— the same model at a different price or rate limit.

What Mistral Medium 3.1 costs to run

Monthly list cost across five workload shapes, using the published cached-input rate where there is one. A floor, not a quote — batch discounts and cache writes aren't included.

WorkloadPer month
Support chatbot

1.2K in / 400 out × 200K requests

$230.08/mo
RAG assistant

8K in / 600 out × 100K requests

$296.00/mo
Coding agent

40K in / 4K out × 20K requests

$278.40/mo
Document extraction

20K in / 1.5K out × 50K requests

$532.00/mo
Bulk classification

500 in / 20 out × 5M requests

$1,020/mo
Price your own workload

Compare Mistral Medium 3.1 with

Benchmarked models at a similar price.

Mistral Medium 3.1 FAQ

How much does Mistral Medium 3.1 cost?

Mistral Medium 3.1 lists at $0.400 per 1M input tokens and $2.00 per 1M output tokens, with cached input reads at $0.040 per 1M. A RAG assistant handling 100K requests a month (8K tokens in, 600 out) comes to about $296.00 at list price.

What is the context window of Mistral Medium 3.1?

Mistral Medium 3.1 accepts up to 131,072 tokens of context and can return up to 104,857 output tokens per response.

Does Mistral Medium 3.1 support tool calling?

Yes — Mistral Medium 3.1 supports tool (function) calling. It accepts text, image, file input.

How does Mistral Medium 3.1 score on benchmarks?

LiveBench has not published a run for Mistral Medium 3.1 yet. Until it does, compare it on price and specs, or run your own evaluation on your own tasks.

What is the API model ID for Mistral Medium 3.1?

On OpenRouter the model ID is "mistralai/mistral-medium-3.1". It was listed on Aug 13, 2025.

More from mistralai

How these numbers are produced

  • Price and specs — provider list data from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
  • Scores and ranksLiveBench release 2026-06-25. Ranks count only models that have a published run; a blank means “not evaluated”, never “bad”.
  • Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.

Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.