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Mistral Medium vs Kimi Linear

Mistral Mistral Medium vs Moonshot AI Kimi Linear — side-by-side specs.

Mistral
Mistral Medium
Moonshot AI
Kimi Linear
Overview
CompanyMistralMoonshot AI
Release dateDec 2023Oct 2025
Model type
Open sourceNoYes
Specifications
Parameters
48B
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapMistral Medium shipped 670 days before Kimi Linear

Which is better: Mistral Medium or Kimi Linear?

Mistral Medium and Kimi Linear do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Mistral Medium shipped 670 days before Kimi Linear, so benchmark comparisons should account for the intervening progress.

Kimi Linear is an open-source / open-weight model; Mistral Medium is proprietary.

Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was Mistral Medium released?
Mistral Medium was released by Mistral on Dec 2023.
When was Kimi Linear released?
Kimi Linear was released by Moonshot AI on Oct 2025.
Is Mistral Medium or Kimi Linear open source?
Kimi Linear is an open-source / open-weight model released by Moonshot AI. Mistral Medium is a proprietary model released by Mistral.

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