Model watch2026-10-184 min Claude Haiku 5.5 Pricing: $0.10 Input Under 100k, 5x AboveClaude Haiku 5.5 launched Oct 7, 2026: $0.10 per million input tokens up to 100k, $0.50 above. Tiers, the new tokenizer's impact, and how to estimate cost. #Claude#Haiku 5.5#API pricing#tokenizer