ChatGPT-4o (March 2025) vs GPT-5.2
Compare ChatGPT-4o (March 2025) and GPT-5.2, both from OpenAI, context windows of 128K vs 400K, tested across 32 shared challenges.
Our Verdict
GPT-5.2
ChatGPT-4o (March 2025)Runner-up
No community votes yet. On paper, GPT-5.2 has the edge — newer, bigger context window.
Too close to call
API pricing
Cost per 1M tokens
ChatGPT-4o (March 2025)
Input
$5.00
Output
$15.00
GPT-5.2
Input
$1.75
2.9× cheaper
Output
$14.00
1.1× cheaper
GPT-5.2 is cheaper on both — 2.9× input, 1.1× output
Writing DNA
Style Comparison
Similarity
45%
ChatGPT-4o (March 2025) uses 16.2x more emoji
ChatGPT-4o (March 2025)
GPT-5.2
55%Vocabulary64%
24wSentence Length16w
0.52Hedging0.34
3.3Bold9.4
6.0Lists3.9
0.94Emoji0.06
0.63Headings0.89
0.05Transitions0.31
Based on 15 + 15 text responses
Research
What we learned reading every model
FAQ
