Performance Benchmarks for claude-haiku-5.5-high

Analyze how claude-haiku-5.5-high stacks up against other frontier models in terms of cost-to-performance and raw intelligence (LMArena Elo).

2026 Performance Summary

🚀 Intelligence (Elo): 1587
💰 API Cost (Input): $1e-7 / 1M tokens
⚡ API Cost (Output): $5e-7 / 1M tokens
⏱️ Real-world Throughput: 185 tokens/s

Analysis: claude-haiku-5.5-high is currently positioned on the Pareto Frontier. This means it offers a unique and optimal balance between intelligence (Elo: 1587) and cost ($1e-7/1M tokens), making it a top-tier choice for its price bracket.

Highly Recommended Alternatives

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
hy4-preview	1632	$8.34e-7	24
glm-5.3-max	1478	$3.9e-8	66
deepseek-v4-flash-high-preview	1439	$7.5e-9	107

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