Claude Haiku 5.5 is Anthropic's compact foundation model built for high-throughput language tasks, subagent coding, and computer automation workflows.
What the product does and how it is positioned
Claude Haiku 5.5 is engineered for high-frequency, repetitive operational tasks such as text summarization, content compaction, classification requests, and database querying. It operates both as an independent system for rapid interactions, including live customer support, and as an auxiliary subagent working in tandem with larger models on technical workflows.
The model introduces an adjustable effort setting to calibrate analytical depth to specific operational needs, and it integrates computer and browser automation capabilities through developer libraries. Anthropic provides access to Haiku 5.5 across major cloud providers alongside domain-specific safety boundaries for cybersecurity and biological research.
Source-supported ways to use the product
Processing high-volume operational tasks such as synthesizing long texts, compacting context windows, and executing structured database lookups.
Serving as an auxiliary subagent paired with Opus 5.5 or Sonnet 5.5 to handle discrete coding assignments, script runs, or targeted data extraction.
The official customer story reports Asana evaluated the model for agent tasks such as triaging bugs, setting up projects, and scanning portfolios for high-risk work.
The official customer story reports HubSpot evaluated the model on CRM operations, including identifying ambiguous records and reporting on sales deals.
Haiku 5.5 incorporates a configurable effort control that lets developers select between multiple effort levels to tailor reasoning intensity to the complexity of the prompt.
The model also supports computer and browser use in beta via the Claude Python and TypeScript software development kits, enabling programmatic control of desktop environments and web interfaces.
Checks to run with your own material and workflow
What was checked and when
Answers based on the source-checked product record
Claude Haiku 5.5 is available on Amazon Web Services, Google Cloud, Microsoft Azure, and the Claude Platform.
The adjustable effort setting allows developers to select different reasoning tiers ranging from low to maximum to align model behavior with task needs.
Yes, Claude Haiku 5.5 supports computer use and browser use in beta through updates to the Claude Python and TypeScript software development kits.
The model can function as a secondary subagent coordinated alongside Claude Opus 5.5 or Sonnet 5.5 to complete targeted coding and analytical tasks.
The model allows defensive cybersecurity tasks while blocking penetration testing, and permits biological research while blocking potentially harmful queries.
