claude-opus-4-1-20250805 vs gemini-3.5-flash Benchmark Comparison

Direct benchmark comparison between claude-opus-4-1-20250805 and gemini-3.5-flash based on LMArena Elo and the latest 2026 API pricing.

Direct Technical & Pricing Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
claude-opus-4-1-20250805	1447	$0.000015	3
gemini-3.5-flash	1480	$0.0000015	118

*These models represent the Pareto Frontier (optimal cost-to-performance).*

Comparison Summary: gemini-3.5-flash is the more capable model in this pair, leading by 33 Elo points. Specifically, gemini-3.5-flash is currently on the Pareto line, suggesting it offers better systemic value for its performance tier.