MiniMax H3 character-sheet workflow: prompt drift on long prompts forces a 3-step manual pipeline
robertwellesley · reddit · 2026-09-10
The author praises MiniMax H3's instruction-following (even using 0.3s video frames as images) but spent days fighting a character-sheet workflow. Long prompts cause "prompt drift" where H3 deviates more the longer the prompt, even with denoising clamps and Director time segments.
Working pipeline: (1) batch de-halo images generated with a "clear plastic halo above head" trick to force full-head renders, (2) manually swap in hi-res faces since H3 is weak on small faces, (3) Lanczos-resize and combine into a 2x2 grid. On a 3080 16GB, 2560px reference images choke the setup. Author asks for ways to curb long-prompt degradation or flush prompt caches.
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