deepseek-r1-0528 vs grok-4-fast-chat

Direct benchmark comparison between deepseek-r1-0528 and grok-4-fast-chat based on LMArena Elo and latest API pricing.

Direct Technical Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
deepseek-r1-0528	1422	$4.5e-7	25
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, deepseek-r1-0528 currently leads with an Elo of 1422.