GPT-5
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GPT-5 vs Claude Opus 4
Compare GPT-5 by OpenAI against Claude Opus 4 by Anthropic, in 57 community votes, claude opus 4 wins 60% of head-to-head duels, context windows of 400K vs 200K, tested across 33 shared challenges. Updated April 2026.
Which is better, GPT-5 or Claude Opus 4?
Claude Opus 4 is the better choice overall, winning 60% of 57 blind community votes on Rival. GPT-5 costs $1.25/M input tokens vs $15/M for Claude Opus 4. Context windows: 400K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-5 and Claude Opus 4
GPT-5 is made by openai while Claude Opus 4 is from anthropic. GPT-5 has a 400K token context window compared to Claude Opus 4's 200K. On pricing, GPT-5 costs $1.25/M input tokens vs $15/M for Claude Opus 4. In community voting, In 57 community votes, Claude Opus 4 wins 60% of head-to-head duels.
In 57 community votes, Claude Opus 4 wins 60% of head-to-head duels. GPT-5 leads in Image Generation, Reasoning, while Claude Opus 4 leads in Web Design, Conversation. Based on blind community voting from the Rival open dataset of 57+ human preference judgments for this pair.
Web Design: Claude Opus 4 wins 77% of votes
Image Generation: GPT-5 wins 57% of votes
Reasoning: GPT-5 wins 60% of votes
Conversation: Claude Opus 4 wins 67% of votes
Our Verdict
Claude Opus 4Winner
GPT-5Runner-up
Pick Claude Opus 4. In 57 blind votes, Claude Opus 4 wins 60% of the time. That's not luck.
Pick GPT-5 for Reasoning, Image Generation. Pick Claude Opus 4 for Web Design, Conversation. GPT-5 is 7.5x cheaper per token — worth considering if cost matters.
Clear winner
Writing DNA
Style Comparison
Similarity
91%
Claude Opus 4 uses 11.2x more emoji
GPT-5
Claude Opus 4
65%Vocabulary64%
13wSentence Length62w
0.20Hedging0.52
0.2Bold4.4
4.6Lists9.1
0.00Emoji0.11
0.16Headings1.87
0.03Transitions0.27
Based on 16 + 16 text responses
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279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
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