Pareto Frontier Leader Domain Specialist Dominated (Off-Frontier)
1. Intelligence vs. Cost / Task
avg_cost_per_task (USD, log X)
Focus ⤢
2. Intelligence vs. 1M Input
pricing.prompt (USD, log X)
Focus ⤢
3. Intelligence vs. 1M Output
pricing.completion (USD, log X)
Focus ⤢
Claude Sonnet 5.5 anthropic/claude-sonnet-5.5-20260928 Pareto Frontier Optimal
Intelligence Index 56.0
Benchmark Profile 92.4% GPQA / 78.0% Tau
Avg Cost / Task $0.0252
Input / 1M $2.00/1M
Output / 1M $10.00/1M