GPT-5.2 Pro vs GPT-5.4
Compare GPT-5.2 Pro and GPT-5.4, both from OpenAI, context windows of 400K vs 1.1M, tested across 31 shared challenges.
Our Verdict
GPT-5.4
GPT-5.2 ProRunner-up
No community votes yet. On paper, GPT-5.4 has the edge — newer, bigger context window.
GPT-5.4 is 11x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.2 Pro
Input
$21.00
Output
$168.00
GPT-5.4
Input
$2.50
8.4× cheaper
Output
$15.00
11× cheaper
GPT-5.4 is cheaper on both — 8.4× input, 11× output
Writing DNA
Style Comparison
Similarity
62%
GPT-5.2 Pro uses 2.1x more bold
GPT-5.2 Pro
GPT-5.4
62%Vocabulary54%
19wSentence Length28w
0.39Hedging0.69
8.6Bold4.1
3.8Lists8.1
0.00Emoji0.00
1.17Headings1.84
0.02Transitions0.02
Based on 10 + 22 text responses
Research
What we learned reading every model
FAQ
