Overview

Claude Haiku 5.5 is anthropic’s fast, low-cost Claude 5.5 family model for high-volume agentic and support workloads. API ID claude-haiku-5-5.

Specifications

  • Context: 1M tokens; max output 128K
  • Pricing (≤100K prompt): 0.50 per million input/output tokens — ~75–90% below claude-haiku 4.5 on typical workloads
  • Pricing (>100K prompt): 2.50 per million tokens
  • Retirement: Not before October 7, 2027

Recent Developments

Sources