Mistral Large 2 vs xAI: Grok 4

Compare Mistral Large 2 by Mistral AI against xAI: Grok 4 by xAI, context windows of 128K vs 256K, tested across 15 shared challenges. Updated April 2026.

Which is better, Mistral Large 2 or xAI: Grok 4?

Mistral Large 2 and xAI: Grok 4 are both competitive models. Mistral Large 2 costs $8/M input tokens vs $3/M for xAI: Grok 4. Context windows: 128K vs 256K tokens. Compare their real outputs side by side below.

Key Differences Between Mistral Large 2 and xAI: Grok 4

Mistral Large 2 is made by mistral while xAI: Grok 4 is from xai. Mistral Large 2 has a 128K token context window compared to xAI: Grok 4's 256K. On pricing, Mistral Large 2 costs $8/M input tokens vs $3/M for xAI: Grok 4.

Our Verdict
xAI: Grok 4
xAI: Grok 4
Mistral Large 2
Mistral Large 2Runner-up

No community votes yet. On paper, xAI: Grok 4 has the edge — newer, bigger context window, major provider backing.

Too close to call
Writing DNA

Style Comparison

Similarity
99%

Mistral Large 2 uses 11.3x more emoji

Mistral Large 2
xAI: Grok 4
43%Vocabulary53%
21wSentence Length18w
0.39Hedging0.67
14.4Bold2.7
7.4Lists2.7
0.80Emoji0.07
1.41Headings0.86
0.01Transitions0.04
Based on 10 + 21 text responses
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Mistral Large 2xAI: Grok 4

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
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