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Mixtral 8×22B vs Grok 4.1 Fast

Mistral Mixtral 8×22B vs xAI Grok 4.1 Fast — side-by-side specs.

Mistral
Mixtral 8×22B
xAI
Grok 4.1 Fast
Overview
CompanyMistralxAI
Release dateApr 10 2024Nov 19 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapMixtral 8×22B shipped 588 days before Grok 4.1 Fast

Which is better: Mixtral 8×22B or Grok 4.1 Fast?

Mixtral 8×22B and Grok 4.1 Fast do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Mixtral 8×22B shipped 588 days before Grok 4.1 Fast, so benchmark comparisons should account for the intervening progress.

Mixtral 8×22B is an open-source / open-weight model; Grok 4.1 Fast 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 Mixtral 8×22B released?
Mixtral 8×22B was released by Mistral on Apr 10 2024.
When was Grok 4.1 Fast released?
Grok 4.1 Fast was released by xAI on Nov 19 2025.
Is Mixtral 8×22B or Grok 4.1 Fast open source?
Mixtral 8×22B is an open-source / open-weight model released by Mistral. Grok 4.1 Fast is a proprietary model released by xAI.

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