hy4-preview vs mimo-v2.6-pro Benchmark Comparison

Direct benchmark comparison between hy4-preview and mimo-v2.6-pro based on LMArena Elo and the latest 2026 API pricing.

Direct Technical & Pricing Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
hy4-preview	1631	$8.34e-7	31
mimo-v2.6-pro	1619	$4.35e-7	30

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

Comparison Summary: These models are highly competitive, with a negligible Elo gap of only 12 points. The choice between them should be driven by specific API features or provider preference. Specifically, hy4-preview is currently on the Pareto line, suggesting it offers better systemic value for its performance tier.