Claude Opus 4 vs Gemini 2.5 Pro Experimental
Compare Claude Opus 4 by Anthropic against Gemini 2.5 Pro Experimental by Google AI, in 117 community votes, claude opus 4 wins 54% of head-to-head duels, context windows of 200K vs 1.0M, tested across 42 shared challenges. Updated June 2026.
Which is better, Claude Opus 4 or Gemini 2.5 Pro Experimental?
Claude Opus 4 is the better choice overall, winning 54% of 117 blind community votes on Rival. Claude Opus 4 costs $15/M input tokens vs $1/M for Gemini 2.5 Pro Experimental. Context windows: 200K vs 1000K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4 and Gemini 2.5 Pro Experimental
Claude Opus 4 is made by anthropic while Gemini 2.5 Pro Experimental is from google. Claude Opus 4 has a 200K token context window compared to Gemini 2.5 Pro Experimental's 1000K. On pricing, Claude Opus 4 costs $15/M input tokens vs $1/M for Gemini 2.5 Pro Experimental. In community voting, In 117 community votes, Claude Opus 4 wins 54% of head-to-head duels.
In 117 community votes, Claude Opus 4 wins 54% of head-to-head duels. Claude Opus 4 leads in Conversation. Based on blind community voting from the Rival open dataset of 117+ human preference judgments for this pair.
Per 1M tokens
Gemini 2.5 Pro Experimental is cheaper on both — 15× input, 38× output
Claude Opus 4 has the edge overall. In 117 blind votes, Claude Opus 4 wins 54% of the time.
Claude Opus 4 particularly excels in Conversation. Gemini 2.5 Pro Experimental is 38x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Opus 4 uses 11.2x more emoji
