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Compare AI models

Claude Opus 4.8vsGemini 2.5 Flash

Which should you pick?

  • Claude Opus 4.8 · overall 59.8 vs 16.2
  • 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
coding52.5%3.7%
creative39.5%23.5%
factual68.8%21.3%
multilingual62.4%17.3%
reasoning68.1%17.0%

Anthropic

Full review of Claude Opus 4.8 →

Google Gemini

Full review of Gemini 2.5 Flash →

Other comparisons