Claude Haiku 5.5 is Anthropic’s small, fast language model for high-volume tasks such as summarization, classification, coding subagents, customer support, and browser use. Developers can access it through the Claude API, while Claude’s consumer plans provide a separate way to use the model in the assistant. The model page describes its focus on balancing speed, capability, and cost.
Use cases Summarize and classify large volumes of text, Build latency-sensitive conversations, Delegate a defined subtask to an agent, Automate repetitive browser or desktop work
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