Grok 4.1 Fast vs Mistral Large

Compare Grok 4.1 Fast by xAI against Mistral Large by Mistral AI, tested across 24 shared challenges. Updated April 2026.

Which is better, Grok 4.1 Fast or Mistral Large?

Grok 4.1 Fast and Mistral Large are both competitive models. Compare their real outputs side by side below.

Key Differences Between Grok 4.1 Fast and Mistral Large

Grok 4.1 Fast is made by xai while Mistral Large is from mistral.

Our Verdict
Grok 4.1 Fast
Grok 4.1 Fast
Mistral Large
Mistral LargeRunner-up

No community votes yet. On paper, Grok 4.1 Fast has the edge — bigger model tier, newer, major provider backing.

Slight edge
Writing DNA

Style Comparison

Similarity
100%

Mistral Large uses 30.6x more emoji

Grok 4.1 Fast
Mistral Large
67%Vocabulary49%
15wSentence Length19w
0.17Hedging0.86
4.7Bold8.9
3.7Lists5.4
0.00Emoji0.31
0.99Headings1.01
0.14Transitions0.10
Based on 24 + 16 text responses
vs

Ask them anything yourself

Grok 4.1 FastMistral Large

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
FAQ

Common questions