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Compare AI models

Claude Opus 4.8vsGemini 2.5 Flash

Which should you pick?

  • Claude Opus 4.8 · overall 58.3 vs 14.2
  • Gemini 2.5 Flash cheaper output · $3.74 vs $32.50 /1M
  • Gemini 2.5 Flash longer context · 1.0M tokens vs 1.0M tokens

Specifications

 Claude Opus 4.8Gemini 2.5 Flash
TierAA
Context window1.0M tokens1.0M tokens
Input price (per 1M tokens)$6.50$0.4500
Output price (per 1M tokens)$32.50$3.74
ProvenanceRuns in:USMade in:United StatesRuns in:USMade in:United States

Quality by category

Win rate per category: how often each model beats a field-average model on a prompt from that category. 50% is average. It is not a percentage of correct answers.

CategoryClaude Opus 4.8Gemini 2.5 Flash
coding47.9%3.4%
creative43.9%24.4%
factual71.5%25.0%
multilingual57.8%11.0%
reasoning66.6%10.3%

Anthropic

Full review of Claude Opus 4.8

Google Gemini

Full review of Gemini 2.5 Flash

Other comparisons