Muse Spark Open (Max) vs Hy4 preview Benchmark Comparison

Direct benchmark comparison between Muse Spark Open (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
Muse Spark Open (Max)	1511	$0.00000125	107
Hy4 preview	1631	$8.34e-7	36

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

Comparison Summary: Hy4 preview is the more capable model in this pair, leading by 120 Elo points. Specifically, Hy4 preview is currently on the Pareto line, suggesting it offers better systemic value for its performance tier.