gpt-6-luna-max vs hy4-preview Benchmark Comparison

Direct benchmark comparison between gpt-6-luna-max and hy4-preview based on LMArena Elo and the latest 2026 API pricing.

Direct Technical & Pricing Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
gpt-6-luna-max	1593	$1e-7	74
hy4-preview	1631	$8.34e-7	31

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

Comparison Summary: hy4-preview is the more capable model in this pair, leading by 38 Elo points. Notably, both models are on the Pareto Frontier, representing a true trade-off between higher intelligence and lower cost.