Mistral AI · DOWNLOADABLE

Mistral-Medium-3.5-128B

Capabilities unconfirmed

A specialized research model. See the model card for its intended task and supported setup.

Listed Mar 31, 2026 · Checked Oct 25, 2026

What it does

Published capability labels: Capabilities unconfirmed. Listed uses: Research.

Inputs
See model card
Outputs
See model card
Category
Other
Context window
Not reported
License
other

These labels describe intended capabilities. Scout has not independently evaluated this model or established that it is best at a particular task.

Model size & local memory

Total parameters128BModel name (nominal size)
4-bit weight storage≈ 64 GBTheoretical weights only

Running requires extra memory for cache, activations, and the runtime. This is not a tested minimum VRAM requirement. A compatible 4-bit download is not guaranteed; mixture-of-experts estimates use total parameters.

No independently verified hardware speed is attached to this profile. You can record your own measurements in the explorer’s My hardware view. Understand the memory estimate.

Cloud pricing

No cloud price is linked to this listing. Cloud API entries are listed separately in the library.

Tested performance

Independent leaderboard results for exact configurations of this model. Each test has its own scale, so compare results within a test, not across tests. See every tested model.

Code Arena

Build apps & websites · Ratings published Oct 23, 2026

ConfigurationResult95% intervalEvidence
Mistral Medium 3.51264.21249.4 to 1279.02,315 votes · leaderboard rank #134

A preference rating, not a percentage of correct answers. Design, usability, and the coding setup affect votes. Original leaderboard ↗ · CC BY 4.0

Agent Arena

Work with an AI agent · Ratings published Oct 23, 2026

ConfigurationResult95% intervalEvidence
Mistral Medium 3.5-0.121-0.139 to -0.10413,468 sessions · leaderboard rank #45

A net improvement index relative to Arena’s baseline. Zero is the baseline, not zero capability; this is not a task completion percentage. Original leaderboard ↗ · CC BY 4.0

Benchmark evidence

No vendor-reported results are attached to this listing.