Claude Opus 4.1 vs Mistral Large 2

Compare Claude Opus 4.1 by Anthropic against Mistral Large 2 by Mistral AI, context windows of 200K vs 128K, tested across 13 shared challenges. Updated April 2026.

Which is better, Claude Opus 4.1 or Mistral Large 2?

Claude Opus 4.1 and Mistral Large 2 are both competitive models. Claude Opus 4.1 costs $15/M input tokens vs $8/M for Mistral Large 2. Context windows: 200K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4.1 and Mistral Large 2

Claude Opus 4.1 is made by anthropic while Mistral Large 2 is from mistral. Claude Opus 4.1 has a 200K token context window compared to Mistral Large 2's 128K. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $8/M for Mistral Large 2.

Our Verdict
Claude Opus 4.1
Claude Opus 4.1
Mistral Large 2
Mistral Large 2Runner-up

No community votes yet. On paper, Claude Opus 4.1 has the edge — bigger model tier, newer, bigger context window, major provider backing.

Mistral Large 2 is 3.1x cheaper per token — worth considering if cost matters.

Slight edge
Writing DNA

Style Comparison

Similarity
100%

Claude Opus 4.1 uses 12.7x more transitions

Claude Opus 4.1
Mistral Large 2
61%Vocabulary43%
87wSentence Length21w
0.54Hedging0.39
5.1Bold14.4
6.7Lists7.4
0.38Emoji0.80
1.68Headings1.41
0.13Transitions0.01
Based on 17 + 10 text responses
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Claude Opus 4.1Mistral Large 2

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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