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Codestral Mamba 7B vs Grok 4.1 Fast

Mistral Codestral Mamba 7B vs xAI Grok 4.1 Fast — side-by-side specs.

Mistral
Codestral Mamba 7B
xAI
Grok 4.1 Fast
Overview
CompanyMistralxAI
Release dateJul 16 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 gapCodestral Mamba 7B shipped 491 days before Grok 4.1 Fast

Which is better: Codestral Mamba 7B or Grok 4.1 Fast?

Codestral Mamba 7B and Grok 4.1 Fast do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Codestral Mamba 7B shipped 491 days before Grok 4.1 Fast, so benchmark comparisons should account for the intervening progress.

Codestral Mamba 7B 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 Codestral Mamba 7B released?
Codestral Mamba 7B was released by Mistral on Jul 16 2024.
When was Grok 4.1 Fast released?
Grok 4.1 Fast was released by xAI on Nov 19 2025.
Is Codestral Mamba 7B or Grok 4.1 Fast open source?
Codestral Mamba 7B 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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