Claude Opus 4.1 vs GPT-5
Compare Claude Opus 4.1 by Anthropic against GPT-5 by OpenAI, in 104 community votes, claude opus 4.1 wins 58% of head-to-head duels, context windows of 200K vs 400K, tested across 51 shared challenges.
Web Design: Claude Opus 4.1 wins 95% of votes
Image Generation: GPT-5 wins 71% of votes
Reasoning: GPT-5 wins 100% of votes
Conversation: Claude Opus 4.1 wins 86% of votes
Analysis: GPT-5 wins 100% of votes
Our Verdict
Claude Opus 4.1Winner
GPT-5Runner-up
Pick Claude Opus 4.1. In 104 blind votes, Claude Opus 4.1 wins 58% of the time. That's not luck.
Pick Claude Opus 4.1 for Web Design, Conversation. Pick GPT-5 for Reasoning, Analysis, Image Generation. GPT-5 is 7.5x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
Claude Opus 4.1
Input
$15.00
Output
$75.00
GPT-5
Input
$1.25
12× cheaper
Output
$10.00
7.5× cheaper
GPT-5 is cheaper on both — 12× input, 7.5× output
Writing DNA
Style Comparison
Similarity
46%
Claude Opus 4.1 uses 38.4x more emoji
Claude Opus 4.1
GPT-5
61%Vocabulary65%
87wSentence Length13w
0.54Hedging0.20
5.1Bold0.2
6.7Lists4.6
0.38Emoji0.00
1.68Headings0.16
0.13Transitions0.03
Based on 17 + 16 text responses
Research
What we learned reading every model
FAQ
