deepseek-v3.1 vs kimi-k2-0905-preview

Direct benchmark comparison between deepseek-v3.1 and kimi-k2-0905-preview based on LMArena Elo and latest API pricing.

Direct Technical Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
deepseek-v3.1	1418	$1.5e-7	11
kimi-k2-0905-preview	1418	$4e-7	23

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

Conclusion: For developers looking for higher intelligence, kimi-k2-0905-preview currently leads with an Elo of 1418.