Free AI summarizers for documents, decks and video

A summary is only useful if it keeps what mattered. These tools read the whole source before writing, so the result follows the argument of the original rather than just the first few pages of it.

Pick the shape you need rather than a word count: a cheat sheet for facts you will look up again, a one-pager to hand to someone else, an outline when the next step is building a deck from it.