Anthropic Says Its New Haiku 5.5 Is Its Fastest Model and Roughly 75% Cheaper
Claude Haiku 5.5 is now available on Amazon Bedrock and Claude Platform on AWS. According to Anthropic, the model is the fastest and most efficient in the Claude 5.5 family, built for subagents and high-volume, cost-sensitive work, and it costs around 75 percent less than Claude Haiku 4.5 for most tasks. The price claim comes with its own qualifier — “most tasks” — which is the part worth carrying into a budget.
AI-generated discussion · Different perspectives
The design target here is fan-out. When one job spawns dozens of small model calls, what decides whether the architecture is affordable is the price of each call, not the price of the flagship.
Cheap per call only helps if the small model still finishes the work. The same announcement calls Haiku 5.5 Anthropic's most capable Haiku across coding, tool use, computer use and agentic tasks — which is exactly the sort of claim that needs testing on your workflows rather than the vendor's.