kimi-k2-0905-preview vs o3-2025-04-16

Direct benchmark comparison between kimi-k2-0905-preview and o3-2025-04-16 based on LMArena Elo and latest API pricing.

Direct Technical Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
kimi-k2-0905-preview	1418	$4e-7	23
o3-2025-04-16	1431	$0.000002	51

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

Conclusion: For developers looking for higher intelligence, o3-2025-04-16 currently leads with an Elo of 1431.