Claude Opus 4 vs Gemini 3.1 Pro Preview
Compare Claude Opus 4 by Anthropic against Gemini 3.1 Pro Preview by Google AI, context windows of 200K vs 1.0M, tested across 53 shared challenges. Updated May 2026.
Which is better, Claude Opus 4 or Gemini 3.1 Pro Preview?
Claude Opus 4 and Gemini 3.1 Pro Preview are both competitive models. Claude Opus 4 costs $15/M input tokens vs $2/M for Gemini 3.1 Pro Preview. Context windows: 200K vs 1049K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4 and Gemini 3.1 Pro Preview
Claude Opus 4 is made by anthropic while Gemini 3.1 Pro Preview is from google. Claude Opus 4 has a 200K token context window compared to Gemini 3.1 Pro Preview's 1049K. On pricing, Claude Opus 4 costs $15/M input tokens vs $2/M for Gemini 3.1 Pro Preview.
Per 1M tokens
Gemini 3.1 Pro Preview is cheaper on both — 7.5× input, 6.3× output
No community votes yet. On paper, Gemini 3.1 Pro Preview has the edge — newer, bigger context window.
Gemini 3.1 Pro Preview is 6.3x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Opus 4 uses 11.2x more emoji
