The short version: bring a screenplay or a single sentence, direct it in plain language, and Y-O-X returns a finished film — picture, voice, music, sound design, the cut and the titles.
The longer version is that each of those is normally a separate department with a separate handoff, and most of the cost and nearly all of the delay in independent filmmaking lives in the gaps between them rather than inside the work itself. A change to the script means a change to the shot list, which means a change to the schedule, which means reopening the budget, which means a conversation in which the change usually loses. By the time a revision has travelled through that chain it has often been abandoned for reasons that have nothing to do with whether it made the film better.
This page walks the four steps end to end and describes what actually comes out at the other side. If you are comparing AI film production tools, the useful question is not which one generates the most impressive individual shot — that gap closes every few months and never decided anything. It is which one can absorb a script change on a Tuesday afternoon and still hand back a coherent film, with continuity intact, without a human rebuilding the connective tissue by hand.
A screenplay, a treatment, or the idea you've been describing to people in bars for two years.
Cast it. Choose where it happens. Say what the scene needs and how it should feel. Change your mind. Say it again.
Holding the same face across every scene. The same room, the same coat, the same scar. Working out the coverage. Cutting it together.
Finished. Picture, voice, music, sound, the cut, the look, the titles.
Picture. Voice. Music. Sound design. The cut and its rhythm. The look. Titles and credits.
A finished film — not a folder of clips to go and assemble somewhere else.