GPT-5.2 vs o1
Compare GPT-5.2 and o1, both from OpenAI, context windows of 400K vs 128K, tested across 53 shared challenges.
Our Verdict
GPT-5.2
o1Runner-up
No community votes yet. On paper, GPT-5.2 has the edge — bigger model tier, newer, bigger context window.
GPT-5.2 is 4.3x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
GPT-5.2
Input
$1.75
8.6× cheaper
Output
$14.00
4.3× cheaper
o1
Input
$15.00
Output
$60.00
GPT-5.2 is cheaper on both — 8.6× input, 4.3× output
Writing DNA
Style Comparison
Similarity
60%
GPT-5.2 uses 5.8x more emoji
GPT-5.2
o1
64%Vocabulary64%
16wSentence Length16w
0.34Hedging0.76
9.4Bold5.0
3.9Lists2.6
0.06Emoji0.00
0.89Headings0.44
0.31Transitions0.40
Based on 15 + 13 text responses
Research
What we learned reading every model
FAQ
Common questions
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