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Mistral Medium vs Kimi-Dev

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

Mistral
Mistral Medium
Moonshot AI
Kimi-Dev
Overview
CompanyMistralMoonshot AI
Release dateDec 2023Jun 2025
Model type
Open sourceNoYes
Specifications
Parameters
72B
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapMistral Medium shipped 548 days before Kimi-Dev

Which is better: Mistral Medium or Kimi-Dev?

Mistral Medium and Kimi-Dev do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Mistral Medium shipped 548 days before Kimi-Dev, so benchmark comparisons should account for the intervening progress.

Kimi-Dev 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-Dev released?
Kimi-Dev was released by Moonshot AI on Jun 2025.
Is Mistral Medium or Kimi-Dev open source?
Kimi-Dev is an open-source / open-weight model released by Moonshot AI. Mistral Medium is a proprietary model released by Mistral.

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