Performance Benchmarks for Kimi K3.1 Pro (Max)

Analyze how Kimi K3.1 Pro (Max) stacks up against other frontier models in terms of cost-to-performance and raw intelligence (LMArena Elo).

2026 Performance Summary

🚀 Intelligence (Elo): 1692
💰 API Cost (Input): $0.000002 / 1M tokens
⚡ API Cost (Output): $0.00001 / 1M tokens
⏱️ Real-world Throughput: 35 tokens/s

Analysis: Kimi K3.1 Pro (Max) is currently positioned on the Pareto Frontier. This means it offers a unique and optimal balance between intelligence (Elo: 1692) and cost ($0.000002/1M tokens), making it a top-tier choice for its price bracket.

Highly Recommended Alternatives

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
DeepSeek-V4.1-Flash-20261017 (Max)	1665	$1.5e-7	209
GLM-5.3 (Max)	1481	$7.9e-8	112
DeepSeek-V4.1-Flash-20260910 (Max)	1476	$2e-8	218.5
gpt-oss-20b	1317	$1.8e-8	64

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