v1
Remove an attachment from a session or cancel its in-progress processing.
Removes the attachment from the session; the AI will no longer reference it in subsequent chat turns. If processing is still in progress, also cancels the underlying job. Use to free up context, remove sensitive files mid-session, or replace a stale reference document. The attachment_id can be either the final attachment ID or the job ID (during processing).
DELETE
Remove an attachment from a session or cancel its in-progress processing.
Previous
Check processing status of all attachments in a session.Returns each attachment's processing state (pending/processing/completed/failed) plus extracted text length and chunk count once ready. Poll this after upload_attachment_base64 to know when an attachment becomes queryable by the AI. Surfaces processing errors with actionable messages.
Next
Remove an attachment from a session or cancel its in-progress processing.

