Testing Minimax H3: Multi-Reference Prompts Ignored, 5-Hour Generation on RTX 4090

RikkTheGaijin77 · reddit · 2026-08-05

A user testing the multi-reference model of Minimax H3 via ComfyUI encountered several issues. Firstly, the model completely ignored the provided face close-up reference, retaining the face from the full-body image instead. Secondly, it disregarded the fixed-camera setup of the reference dance video and autonomously added zooms and close-up shots.

Furthermore, the generation speed raised questions. Generating a 15-second, 1MP video took 5 hours and 43 minutes on an RTX 4090 with 128GB of RAM, heavily contrasting with community claims of generating similar videos in minutes on an RTX 4060.

Original post →

More from Multimodal

Multimodal channel →