vercel/ai @ai-sdk/cohere@3.0.76

on GitHub

Patch Changes

• 225154e: fix(cohere): tolerate partial citations and usage in non-streaming responses

  Cohere citations and usage fields are optional in the API specification, but the
  response schema required start, end, text, every source document with
  text and title, and usage token counts. Responses with untitled documents
  (documents passed without a filename), with tool-sourced citations, or without
  token counts failed with an AI_TypeValidationError and discarded the whole
  response.

  These fields are now validated loosely: citation fields and source type/id
  are nullish, document is a loose object with optional id/text/title, tool
  sources are accepted, and usage plus its token counts are nullish. Document
  citations without a title fall back to "Document". Tool-only citations are
  skipped because they have no document to point at; their data stays in the
  response body.

  convertCohereUsage no longer falls back to billed_units, which are a
  different measure than tokens (e.g. 12 billed vs 507 input tokens in a single
  response) and would go negative when cached tokens are subtracted. A response
  without tokens now reports undefined token counts instead of unrelated
  numbers. This usage conversion is shared with streaming.

• 024df7d: fix(cohere): read the response id from v2 chat responses

  The non-streaming response schema read generation_id, which Cohere's v2 chat
  response does not return. As a result, generateText().response.id was a locally
  generated fallback instead of the provider's id, while streamText returned the
  id from the message-start event. doGenerate now reads id and keeps
  generation_id (the v1 field) only for compatibility with proxies and mocks that
  still return it.

• 225154e: fix(cohere): emit source stream parts for citations

  streamText did not produce sources for Cohere RAG responses because citation-start stream events were ignored, while generateText mapped message.citations to document sources. Streaming now maps each cited document to the same source part as the non-streaming path. Citations that only reference tool output are not emitted as sources, and citation-start events without citations are ignored.