gemini-3.1-flash-lite-preview vs grok-4-fast-chat

Direct benchmark comparison between gemini-3.1-flash-lite-preview and grok-4-fast-chat based on LMArena Elo and latest API pricing.

Direct Technical Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
gemini-3.1-flash-lite-preview	1438	$2.5e-7	58
grok-4-fast-chat	1421	$2e-7	164

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

Conclusion: For developers looking for higher intelligence, gemini-3.1-flash-lite-preview currently leads with an Elo of 1438.