GPT-5.2 vs Mistral Large 2

Compare GPT-5.2 by OpenAI against Mistral Large 2 by Mistral AI, context windows of 400K vs 128K, tested across 18 shared challenges. Updated April 2026.

Which is better, GPT-5.2 or Mistral Large 2?

GPT-5.2 and Mistral Large 2 are both competitive models. GPT-5.2 costs $1.75/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-5.2 and Mistral Large 2

GPT-5.2 is made by openai while Mistral Large 2 is from mistral. GPT-5.2 has a 400K token context window compared to Mistral Large 2's 128K. On pricing, GPT-5.2 costs $1.75/M input tokens vs $8/M for Mistral Large 2.

Our Verdict
GPT-5.2
GPT-5.2
Mistral Large 2
Mistral Large 2Runner-up

No community votes yet. On paper, GPT-5.2 has the edge — bigger model tier, newer, bigger context window, major provider backing.

Slight edge
Writing DNA

Style Comparison

Similarity
100%

GPT-5.2 uses 31.0x more transitions

GPT-5.2
Mistral Large 2
64%Vocabulary43%
16wSentence Length21w
0.34Hedging0.39
9.4Bold14.4
3.9Lists7.4
0.06Emoji0.80
0.89Headings1.41
0.31Transitions0.01
Based on 15 + 10 text responses
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Ask them anything yourself

GPT-5.2Mistral 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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We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
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