We ran MiniMax H3 for a full day on a single RTX 5090: talking shots driven by our own voice track, a walk and talk, text to speech, a trained voice, and an eight scene short film with its own soundtrack. Every number here came off our machine. So did the mistakes.
For five weeks we would not say how our presenter’s talking footage is made. Here is the whole chain: LongCat for the body, MuseTalk for the mouth, Duix to clean up what that leaves, and MuseTalk again for the visemes. Why the order matters more than any single model.
MuseTalk generates lip-synced video faster than real time on a 5090, but getting it to BUILD on Blackwell is dependency hell. Here’s the exact recipe that works.