Embedding model.

An embedding model turns your content into something you can search by meaning instead of exact words. Text, audio, images, video, PDFs, all of it gets converted into a format a computer can compare. So instead of matching keywords, you're matching ideas.

This is the model that makes "search across all my video content" work. Or "find that moment in my podcast archive where I talked about pricing." You're not hunting for a phrase you said word-for-word. You're searching for the concept, and it finds the right bit even if you described it differently at the time.

If you've wanted to build something like that over your own content, this is the piece that makes it practical. It sits behind every "chat with your docs" tool and every decent search over a messy pile of files.