gemini-3.1-pro-preview vs hy3 Benchmark Comparison

Direct benchmark comparison between gemini-3.1-pro-preview and hy3 based on LMArena Elo and the latest 2026 API pricing.

Direct Technical & Pricing Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
gemini-3.1-pro-preview	1487	$0.000002	107
hy3	1455	$1.32e-7	86

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

Comparison Summary: gemini-3.1-pro-preview is the more capable model in this pair, leading by 32 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.