Claude 3 Opus vs Gemini 2.5 Pro (I/O Edition)
Compare Claude 3 Opus by Anthropic against Gemini 2.5 Pro (I/O Edition) by Google AI, tested across 11 shared challenges. Updated May 2026.
Which is better, Claude 3 Opus or Gemini 2.5 Pro (I/O Edition)?
Claude 3 Opus and Gemini 2.5 Pro (I/O Edition) are both competitive models. Claude 3 Opus 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 3 Opus and Gemini 2.5 Pro (I/O Edition)
Claude 3 Opus is made by anthropic while Gemini 2.5 Pro (I/O Edition) is from google. On pricing, Claude 3 Opus costs $15/M input tokens vs $1.25/M for Gemini 2.5 Pro (I/O Edition).
Per 1M tokens
Gemini 2.5 Pro (I/O Edition) is cheaper on both — 12× input, 7.5× output
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Gemini 2.5 Pro (I/O Edition) is 7.5x cheaper per token — worth considering if cost matters.
Style Comparison
Gemini 2.5 Pro (I/O Edition) uses 578.2x more bold
