Anthropic has introduced Claude Haiku 5.5, its fastest and most capable small model to date. Designed for high-volume workloads, it targets summarization, classification, database queries, customer support, browser use and subagent tasks.
Anthropic says the model costs around 75% less to run on average than Haiku 4.5 and introduces adjustable effort settings for balancing intelligence and cost. Haiku 5.5 scored 72.4% on the OSWorld 2.1 offline subset and 46.4% on FrontierCode 1.1.
The model is available through the Claude Platform, AWS, Google Cloud and Microsoft Azure, with stronger alignment and cybersecurity safeguards than Haiku 4.5.
