Claude Opus 4.1 vs Gemini 2.5 Pro (I/O Edition)
Compare Claude Opus 4.1 by Anthropic against Gemini 2.5 Pro (I/O Edition) by Google AI, in 10 community votes, claude opus 4.1 wins 56% of head-to-head duels, tested across 40 shared challenges. Updated June 2026.
Which is better, Claude Opus 4.1 or Gemini 2.5 Pro (I/O Edition)?
Claude Opus 4.1 is the better choice overall, winning 56% of 10 blind community votes on Rival. Claude Opus 4.1 costs $15/M input tokens vs $1.25/M for Gemini 2.5 Pro (I/O Edition). Compare their real outputs side by side below.
Key Differences Between Claude Opus 4.1 and Gemini 2.5 Pro (I/O Edition)
Claude Opus 4.1 is made by anthropic while Gemini 2.5 Pro (I/O Edition) is from google. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $1.25/M for Gemini 2.5 Pro (I/O Edition). In community voting, In 10 community votes, Claude Opus 4.1 wins 56% of head-to-head duels.
In 10 community votes, Claude Opus 4.1 wins 56% of head-to-head duels. Claude Opus 4.1 leads in Web Design, while Gemini 2.5 Pro (I/O Edition) leads in Image Generation. Based on blind community voting from the Rival open dataset of 10+ human preference judgments for this pair.
Per 1M tokens
Gemini 2.5 Pro (I/O Edition) is cheaper on both — 12× input, 7.5× output
Claude Opus 4.1 has the edge overall. In 10 blind votes, Claude Opus 4.1 wins 56% of the time.
Pick Claude Opus 4.1 for Web Design. Pick Gemini 2.5 Pro (I/O Edition) for Image Generation. Gemini 2.5 Pro (I/O Edition) is 7.5x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Opus 4.1 uses 38.4x more emoji
