How a character and a world get built once, then held across eight shots and eighty-four seconds without drifting - from a wide net of story ideas down to a graded master.
The route we ran, start to finish. Grok Imagine's ~10–15 passes bought the locked character design that every downstream step depends on - reference sheet, frame pairs, and all eight generations trace back to it. Gold marks the batch and export milestones. Each of the 8 shots got 3 H3 renders (24 total, under an hour of compute); the best take per shot went into the Resolve cut.
asset / step hand-offbatch or export milestone
ChatGPT Astra
Open-ended brainstorm - 10 story ideas before one gets picked.
Claude Opus
Writes the 1:24 script and the character descriptions the design work builds from.
Grok Imagine
Iterates the character's look - ~10–15 generations to lock the design.
Nano Banana
Character reference sheet, plus one first/last frame pair per shot (×8) as H3's I2V bookends.
VibeVoice
Local - zero-shot voice sample(s) for the character.
MiniMax H3 · FLA2Video
First + last frame + voice → clip. 8 shots × 3 versions, 16:9 1280×720, < 1 hr total render.
DaVinci Resolve
Import the best take per shot, cut to 1:24, master export.