Mistral Devstral Medium vs Grok 3

Compare Mistral Devstral Medium by Mistral AI against Grok 3 by xAI, tested across 53 shared challenges. Updated April 2026.

Which is better, Mistral Devstral Medium or Grok 3?

Mistral Devstral Medium and Grok 3 are both competitive models. Compare their real outputs side by side below.

Key Differences Between Mistral Devstral Medium and Grok 3

Mistral Devstral Medium is made by mistral while Grok 3 is from xai.

Our Verdict
Grok 3
Grok 3
Mistral Devstral Medium
Mistral Devstral MediumRunner-up

No community votes yet. On paper, Grok 3 has the edge — bigger model tier, bigger context window, major provider backing.

Too close to call
Writing DNA

Style Comparison

Similarity
96%

Grok 3 uses 3.9x more emoji

Mistral Devstral Medium
Grok 3
50%Vocabulary49%
17wSentence Length18w
0.56Hedging0.94
4.5Bold2.5
5.3Lists3.0
0.00Emoji0.04
0.19Headings0.65
0.32Transitions0.08
Based on 21 + 17 text responses
vs

Ask them anything yourself

Mistral Devstral MediumGrok 3

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