gemini-3.1-flash-lite-preview vs gpt-5.4 Benchmark Comparison

Direct benchmark comparison between gemini-3.1-flash-lite-preview and gpt-5.4 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-flash-lite-preview	1438	$2.5e-7	78
gpt-5.4	1468	$0.0000025	48

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

Comparison Summary: gpt-5.4 is the more capable model in this pair, leading by 30 Elo points. However, neither model is currently Pareto-optimal. Developers looking for peak efficiency should investigate gemini-3-flash, which offers a superior benchmark-to-price ratio.