Anthropic Haiku 5.5 and Subagent Economics

Anthropic has officially launched Haiku 5.5, completing its latest trio of AI models alongside Sonnet 5.5 and Opus 5.5 just ahead of an upcoming initial public offering. This new iteration is designed for high-volume, repetitive tasks, offering significantly faster performance and enhanced capabilities at a fraction of the cost of its predecessor. Users note that it functions exceptionally well as a subagent, handling smaller duties like data extraction and classification while larger models manage heavier workloads. The model is broadly accessible across major commercial cloud platforms and AWS GovCloud, though experts advise monitoring token usage to maintain cost-efficiency. Overall, the release closes the performance-to-cost gap with competing technologies, earning enthusiastic early praise from enterprise users.