ChatGPT-4o (March 2025) vs Mistral Large 2

Compare ChatGPT-4o (March 2025) by OpenAI against Mistral Large 2 by Mistral AI, context windows of 128K vs 128K, tested across 16 shared challenges. Updated April 2026.

Which is better, ChatGPT-4o (March 2025) or Mistral Large 2?

ChatGPT-4o (March 2025) and Mistral Large 2 are both competitive models. ChatGPT-4o (March 2025) costs $5/M input tokens vs $8/M for Mistral Large 2. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between ChatGPT-4o (March 2025) and Mistral Large 2

ChatGPT-4o (March 2025) is made by openai while Mistral Large 2 is from mistral. ChatGPT-4o (March 2025) has a 128K token context window compared to Mistral Large 2's 128K. On pricing, ChatGPT-4o (March 2025) costs $5/M input tokens vs $8/M for Mistral Large 2.

Our Verdict
ChatGPT-4o (March 2025)
ChatGPT-4o (March 2025)
Mistral Large 2
Mistral Large 2Runner-up

No community votes yet. On paper, ChatGPT-4o (March 2025) has the edge — bigger model tier, newer, major provider backing.

Slight edge
Writing DNA

Style Comparison

Similarity
100%

ChatGPT-4o (March 2025) uses 4.9x more transitions

ChatGPT-4o (March 2025)
Mistral Large 2
55%Vocabulary43%
24wSentence Length21w
0.52Hedging0.39
3.3Bold14.4
6.0Lists7.4
0.94Emoji0.80
0.63Headings1.41
0.05Transitions0.01
Based on 15 + 10 text responses
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ChatGPT-4o (March 2025)Mistral 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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