GPT-4.5 vs GPT-5
Compare GPT-4.5 and GPT-5, both from OpenAI, in 9 community votes, gpt-5 wins 100% of head-to-head duels, context windows of 128K vs 400K, tested across 25 shared challenges.
Web Design: GPT-5 wins 100% of votes
Image Generation: GPT-5 wins 100% of votes
Our Verdict
GPT-5Winner
GPT-4.5Runner-up
Pick GPT-5. In 9 blind votes, GPT-5 wins 100% of the time. That's not luck.
GPT-5 particularly excels in Web Design, Image Generation. GPT-5 is 15x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
GPT-4.5
Input
$75.00
Output
$150.00
GPT-5
Input
$1.25
60× cheaper
Output
$10.00
15× cheaper
GPT-5 is cheaper on both — 60× input, 15× output
Writing DNA
Style Comparison
Similarity
51%
GPT-4.5 uses 24.7x more bold
GPT-4.5
GPT-5
63%Vocabulary65%
16wSentence Length13w
0.57Hedging0.20
4.7Bold0.2
6.4Lists4.6
0.00Emoji0.00
1.30Headings0.16
0.54Transitions0.03
Based on 11 + 16 text responses
Research
What we learned reading every model
FAQ
Common questions
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