Claude Haiku 5.5 costs $0.10 per million input and $0.50 per million output tokens below 100,000 tokens (90% reduction from Claude Haiku 4.5), and $0.50/$2.50 per million input/output tokens above 100,000 (50% reduction from Claude Haiku 4.5)

From the articleAnthropic launches third Claude 5.5 model, expanding AI lineup before planned IPO | ReutersAlso in Anthropic launches Claude Haiku 5.5 with 90% API price reduction, matching GPT-6 Luna