GPT-5 vs OpenAI o3
Compare GPT-5 and OpenAI o3, both from OpenAI, in 21 community votes, gpt-5 wins 63% of head-to-head duels, tested across 52 shared challenges.
Reasoning: GPT-5 wins 67% of votes
Web Design: OpenAI o3 wins 67% of votes
Image Generation: GPT-5 wins 100% of votes
Conversation: GPT-5 wins 67% of votes
Our Verdict
GPT-5Winner
OpenAI o3Runner-up
Pick GPT-5. In 21 blind votes, GPT-5 wins 63% of the time. That's not luck.
Pick GPT-5 for Image Generation, Reasoning, Conversation. Pick OpenAI o3 for Web Design. GPT-5 is 4.0x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
GPT-5
Input
$1.25
8.0× cheaper
Output
$10.00
4.0× cheaper
OpenAI o3
Input
$10.00
Output
$40.00
GPT-5 is cheaper on both — 8.0× input, 4.0× output
Writing DNA
Style Comparison
Similarity
87%
OpenAI o3 uses 4.2x more transitions
GPT-5
OpenAI o3
65%Vocabulary68%
13wSentence Length14w
0.20Hedging0.26
0.2Bold0.7
4.6Lists3.0
0.00Emoji0.00
0.16Headings0.38
0.03Transitions0.12
Based on 16 + 16 text responses
Research
What we learned reading every model
FAQ
