deepseek-v4.1-flash-max vs Muse Spark Open (Max) Benchmark Comparison

Direct benchmark comparison between deepseek-v4.1-flash-max and Muse Spark Open (Max) based on LMArena Elo and the latest 2026 API pricing.

Direct Technical & Pricing Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
deepseek-v4.1-flash-max	1475	$1.5e-7	190
Muse Spark Open (Max)	1511	$0.00000125	107

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

Comparison Summary: Muse Spark Open (Max) is the more capable model in this pair, leading by 37 Elo points. However, neither model is currently Pareto-optimal. Developers looking for peak efficiency should investigate Hy4 preview, which offers a superior benchmark-to-price ratio.