claude-haiku-5.5-high vs muse-spark-1.1 Benchmark Comparison

Direct benchmark comparison between claude-haiku-5.5-high and muse-spark-1.1 based on LMArena Elo and the latest 2026 API pricing.

Direct Technical & Pricing Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
claude-haiku-5.5-high	1587	$1e-7	185
muse-spark-1.1	1491	$0.00000125	150

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

Comparison Summary: claude-haiku-5.5-high is the more capable model in this pair, leading by 96 Elo points. Specifically, claude-haiku-5.5-high is currently on the Pareto line, suggesting it offers better systemic value for its performance tier.