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Magistral Small vs Kimi K2 Thinking

0 vs 1 benchmarks won

Mistral
Magistral Small
Moonshot AI
Kimi K2 Thinking
Overview
CompanyMistralMoonshot AI
Release dateJun 10 2025Nov 6 2025
Model type
Open sourceNoYes
Specifications
Parameters
1T
Context window
256k
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
71.3%
Multimodal understanding
MMMU
Timeline
Release gapMagistral Small shipped 149 days before Kimi K2 Thinking

Which is better: Magistral Small or Kimi K2 Thinking?

Kimi K2 Thinking leads Magistral Small on 1 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Magistral Small shipped 149 days before Kimi K2 Thinking, so benchmark comparisons should account for the intervening progress.

Kimi K2 Thinking is an open-source / open-weight model; Magistral Small 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 Magistral Small released?
Magistral Small was released by Mistral on Jun 10 2025.
When was Kimi K2 Thinking released?
Kimi K2 Thinking was released by Moonshot AI on Nov 6 2025.
Is Magistral Small or Kimi K2 Thinking open source?
Kimi K2 Thinking is an open-source / open-weight model released by Moonshot AI. Magistral Small is a proprietary model released by Mistral.

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