GPT-5.4 vs GPT-5.4 Nano
Compare GPT-5.4 and GPT-5.4 Nano, both from OpenAI, context windows of 1.1M vs 400K, tested across 53 shared challenges.
Our Verdict
GPT-5.4
GPT-5.4 NanoRunner-up
No community votes yet. On paper, GPT-5.4 has the edge — bigger model tier, bigger context window.
GPT-5.4 Nano is 12x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.4
Input
$2.50
Output
$15.00
GPT-5.4 Nano
Input
$0.20
13× cheaper
Output
$1.25
12× cheaper
GPT-5.4 Nano is cheaper on both — 13× input, 12× output
Writing DNA
Style Comparison
Similarity
76%
GPT-5.4
GPT-5.4 Nano
54%Vocabulary51%
28wSentence Length21w
0.69Hedging0.58
4.1Bold7.1
8.1Lists5.5
0.00Emoji0.01
1.84Headings1.39
0.02Transitions0.05
Based on 22 + 23 text responses
Research
What we learned reading every model
FAQ
