Anthropic introduces Citations on the Claude API

Anthropic announced a Citations feature for the Claude API, designed to associate answers with source passages from supplied documents. The feature supports source-aware interfaces, while document selection, extraction quality, and presentation context still require application-level validation and must not be mistaken for factual proof by users.

Original source date: . Hypler briefing published October 6, 2026.

Topics: citations, RAG, provenance

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Generated illustration of indexed source records connected to a reference document.
Generated illustration of indexed source records connected to a reference document. Credit: Hypler / AI-generated editorial illustration. Hypler editorial asset; not vendor or event photography
Generated illustration of indexed source records and a vector retrieval path.
Generated illustration of indexed source records and a vector retrieval path. Credit: Hypler / AI-generated editorial illustration. Hypler editorial asset; not vendor or event photography

Engineering relevance

Citations can improve inspectability when source IDs and passages are retained. Hypler should avoid treating a displayed citation as evidence of factual correctness or complete retrieval coverage.

Original source

This is a historical source briefing, not a statement of current availability or Hypler deployment.