GPT-5 vs Mistral Large 2

Compare GPT-5 by OpenAI against Mistral Large 2 by Mistral AI, in 1 community votes, gpt-5 wins 100% of head-to-head duels, context windows of 400K vs 128K, tested across 18 shared challenges. Updated April 2026.

Which is better, GPT-5 or Mistral Large 2?

GPT-5 is the better choice overall, winning 100% of 1 blind community votes on Rival. GPT-5 costs $1.25/M input tokens vs $8/M for Mistral Large 2. Context windows: 400K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between GPT-5 and Mistral Large 2

GPT-5 is made by openai while Mistral Large 2 is from mistral. GPT-5 has a 400K token context window compared to Mistral Large 2's 128K. On pricing, GPT-5 costs $1.25/M input tokens vs $8/M for Mistral Large 2. In community voting, In 1 community votes, GPT-5 wins 100% of head-to-head duels.

In 1 community votes, GPT-5 wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 1+ human preference judgments for this pair.

Our Verdict
GPT-5
GPT-5Winner
Mistral Large 2
Mistral Large 2Runner-up

Pick GPT-5. In 1 blind votes, GPT-5 wins 100% of the time. That's not luck.

Clear winner
Writing DNA

Style Comparison

Similarity
94%

Mistral Large 2 uses 79.6x more emoji

GPT-5
Mistral Large 2
65%Vocabulary43%
13wSentence Length21w
0.20Hedging0.39
0.2Bold14.4
4.6Lists7.4
0.00Emoji0.80
0.16Headings1.41
0.03Transitions0.01
Based on 16 + 10 text responses
vs

Ask them anything yourself

GPT-5Mistral Large 2

Some models write identically. You are paying for the brand.

178 models fingerprinted across 32 writing dimensions. Free research.

Model Similarity Index

185x

price gap between models that write identically

178

models

12

clone pairs

32

dimensions

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95.7%
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95.6%
GPT-5.4 / Mini
93.3%

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
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