A 768P tier, 29% cheaper than 2K
H3 now has a 768P resolution option. 50 Xins for 4s (2K is 70), 100 for 8s (2K is 140). Draft at 768P, finish at 2K.
Reference videos and audio now work
H3's reference tray takes three kinds of material: up to 9 images, 3 videos, and 3 audio clips, 12 files total.
Editing needs no separate mode
H3 has no separate "edit" entry point — attach a reference video and just say what to change in the prompt. Attach a clip with Chinese subtitles, write "replace the text on screen with English", and the layout and footage carry over.
Clip lengths are checked up front
Reference videos and audio run 2–15 seconds each, 15 seconds combined. If a clip is over, you hear about it before you're charged — not after the render.