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. Updated May 2026.
Which is better, Claude Opus 4.1 or GPT-5?
Claude Opus 4.1 is the better choice overall, winning 58% of 104 blind community votes on Rival. Claude Opus 4.1 costs $15/M input tokens vs $1.25/M for GPT-5. Context windows: 200K vs 400K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4.1 and GPT-5
Claude Opus 4.1 is made by anthropic while GPT-5 is from openai. Claude Opus 4.1 has a 200K token context window compared to GPT-5's 400K. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $1.25/M for GPT-5. In community voting, In 104 community votes, Claude Opus 4.1 wins 58% of head-to-head duels.
In 104 community votes, Claude Opus 4.1 wins 58% of head-to-head duels. Claude Opus 4.1 leads in Web Design, Conversation, while GPT-5 leads in Image Generation, Reasoning, Analysis. Based on blind community voting from the Rival open dataset of 104+ human preference judgments for this pair.
Per 1M tokens
GPT-5 is cheaper on both — 12× input, 7.5× output
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.
Style Comparison
Claude Opus 4.1 uses 38.4x more emoji
