Claude Haiku 3.5

Claude 3.5 Haiku is the speed-and-efficiency member of the Claude 3.5 family, tuned for low latency and high throughput while retaining reliable reasoning and code generation. It accepts text and images and returns well-structured text, making it great for document/chart understanding, UI/screenshot analysis, and step-by-step problem solving. Haiku supports function/tool calling, JSON/structured outputs, streaming, and retrieval grounding, so it slots neatly into agent pipelines and production copilots.
Use it when you need responsive UX and cost control—customer support bots, content and report drafting, repo/code helpers, analytics explainers—while Sonnet serves as the higher-capability sibling for tougher tasks. Available via the Anthropic API and major clouds, with flexible deployment and fine-tuning options for enterprise integration.