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Mistral Small 3.1 vs Grok 4

Mistral Mistral Small 3.1 vs xAI Grok 4 — side-by-side specs.

Mistral
Mistral Small 3.1
xAI
Grok 4
Overview
CompanyMistralxAI
Release dateMar 17 2025Jul 9 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapMistral Small 3.1 shipped 114 days before Grok 4

Which is better: Mistral Small 3.1 or Grok 4?

Mistral Small 3.1 and Grok 4 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Mistral Small 3.1 shipped 114 days before Grok 4, so benchmark comparisons should account for the intervening progress.

Mistral Small 3.1 is an open-source / open-weight model; Grok 4 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 Small 3.1 released?
Mistral Small 3.1 was released by Mistral on Mar 17 2025.
When was Grok 4 released?
Grok 4 was released by xAI on Jul 9 2025.
Is Mistral Small 3.1 or Grok 4 open source?
Mistral Small 3.1 is an open-source / open-weight model released by Mistral. Grok 4 is a proprietary model released by xAI.

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