The described output is an explorable application rather than only a text summary: the user can move through it at their own pace. The supplied material characterizes the capability as working from ordinary uploaded documents, but does not provide a demonstration, technical specification, or supported-file requirements.
The post was dated October 16, 2026, and the Zeitgraphs page was archived the following day and updated October 24. Its accompanying summary mentions sections, summaries, timelines, and quizzes, but those details are not stated in the quoted Google post.
The source does not establish whether the feature is broadly released, which Gemini plans can use it, its price, regional availability, PDF size or page limits, or how faithfully Canvas preserves a document's underlying content.