GPT-5.2 vs GPT-5.5
Compare GPT-5.2 and GPT-5.5, both from OpenAI, context windows of 400K vs 1.1M, tested across 52 shared challenges.
Our Verdict
GPT-5.5
GPT-5.2Runner-up
No community votes yet. On paper, GPT-5.5 has the edge — newer, bigger context window.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.2
Input
$1.75
2.9× cheaper
Output
$14.00
2.1× cheaper
GPT-5.5
Input
$5.00
Output
$30.00
GPT-5.2 is cheaper on both — 2.9× input, 2.1× output
Writing DNA
Style Comparison
Similarity
41%
GPT-5.2 uses 5.8x more emoji
GPT-5.2
GPT-5.5
64%Vocabulary58%
16wSentence Length18w
0.34Hedging0.74
9.4Bold2.9
3.9Lists5.1
0.06Emoji0.00
0.89Headings1.68
0.31Transitions0.03
Based on 15 + 26 text responses
Research
What we learned reading every model
FAQ
Common questions
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