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Mistral AI · Vision & multimodal

Mistral Medium 3.5

Mistral's current flagship for long-horizon agentic work and agentic coding — but note it costs 3x the input and 5x the output of Mistral Large 3, so only reach for it when tool-calling depth or coding quality actually justifies the premium. Aliases: mistral-medium-3, mistral-medium-latest.

Open weights · Permissive (Apache, MIT, OpenMDW) · Data checked September 6, 2026 · Not a hands-on evaluation

Model ID mistral-medium-3-5

Parameters
128B dense
Architecture
Dense
Context window
256,000 tokensMaximum input
Max output
Not recordedPer response
Input price
$1.50 per 1M tokens
Output price
$7.50 per 1M tokens
Cached input
$0.15 per 1M tokens
Blended price
$3.00 per 1M tokens3:1 input to output
Knowledge cutoff
Not recorded
Released
2026-04-28
Status
gaFlagship in its lineup
Size band
120B and above

License and openness

Mistral Medium 3.5 is released under the Modified MIT. This is a permissive license. It generally allows use, modification and redistribution, including commercial use, subject to attribution and notice requirements. License terms can change between versions; confirm the text published with the weights you download.

Capabilities

Input modalitiestext, image, pdf
Output modalitiestext

What it is for

Aliases: mistral-medium-3, mistral-medium-latest.

At a three-to-one input-to-output ratio, Mistral Medium 3.5 costs $3.00 per million tokens blended. A workload of one million input and 330,000 output tokens per day would run about $119.25 per month at list price, before caching or batch discounts.

Cost at list price

Input$1.50 per 1M tokens
Output$7.50 per 1M tokens
Cached input$0.15 per 1M tokens
Blended, 3:1$3.00 per 1M tokens
Estimate a workload across all models ↗

Sources

Sources checked September 6, 2026. Specifications and prices change without notice; confirm against the provider before you commit.

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