GPT-4 vs GPT-5.4
Compare GPT-4 and GPT-5.4, both from OpenAI, context windows of 8K vs 1.1M, tested across 26 shared challenges.
Our Verdict
GPT-5.4
GPT-4Runner-up
No community votes yet. On paper, GPT-5.4 has the edge — newer, bigger context window.
GPT-5.4 is 4.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-4
Input
$30.00
Output
$60.00
GPT-5.4
Input
$2.50
12× cheaper
Output
$15.00
4.0× cheaper
GPT-5.4 is cheaper on both — 12× input, 4.0× output
Writing DNA
Style Comparison
Similarity
45%
GPT-5.4 uses 184.4x more headings
GPT-4
GPT-5.4
59%Vocabulary54%
18wSentence Length28w
1.10Hedging0.69
0.8Bold4.1
2.5Lists8.1
0.00Emoji0.00
0.00Headings1.84
0.45Transitions0.02
Based on 15 + 22 text responses
Research
What we learned reading every model
FAQ
Common questions
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