Today, we're launching Citations, a new API feature that lets Claude ground its answers in source documents.

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Anthropic is launching Citations, a new API feature for its Claude AI models that enables verifiable and trustworthy AI-generated responses by grounding answers in source documents. This feature outperforms most custom implementations and is available on the Anthropic API and Google Cloud’s Vertex AI. Citations can be used in document summarization, complex Q&A, and customer support, offering detailed references to specific sections of source documents. This ensures higher accuracy and reduced hallucination in outputs.

Introducing Citations on the Anthropic API