Mistral Agent Product Launch Coding Agents Multimodal

Mistral Medium 3.5

Frontier-class multimodal model optimized for agentic and coding use cases.

Mistral AI's frontier-class multimodal model for agentic and coding use cases, released as open weights under a Modified MIT license; public preview model with a 256k context window and 128B dense architecture.

Pricing

Model profile · Current snapshot

Input / 1M

$1.50

Output / 1M

$7.50

Blended / 1M

$3.00

Output TPS

174

TTFT (s)

0.5

Model Intelligence

Context window

256,000 tokens

Arena ranking

Benchmarkable

Yes

Model level

release

Intelligence Index

39.2

Coding Index

35.4

GPQA

0.75

HLE

0.13

SciCode

0.4

IFBench

0.69

LCR

0.61

TerminalBench Hard

0.33

TAU2

0.94

Recent stories

1 linked story

releasePRIMARY2026-04-29

Mistral releases Medium 3.5 with 128B weights, 256K context, and Work Mode

Mistral shipped Medium 3.5 as a 128B dense model with 256K context, configurable reasoning, remote agents in Vibe, and Work Mode in Le Chat. The release broadens Mistral’s agent stack, though early comparisons question its price-performance against newer open rivals.