MiniMax H3 Contex Loop 3070 Compact Prepend 480p 3x10s

Summary

Safer MiniMax H3 imported-video extension master for the compact model stack when 480p and 10s per generated clip are the practical VRAM ceiling.

This variant keeps the Contex Loop existing-video flow, preserves the original source at the front, and generates the extension as three 10 second scenes instead of two 15 second scenes.

Status

best-current-compact-existing-video-safe-vram

Workflow asset

workflow.json

Built from

optimized/image-to-video/minimax-h3-contex-loop-3070-compact-30s/

Key model stack

minimax_h3_ref2va_pruned_w4a8_mixed.safetensors
qwen3vl_32b_heretic_minimax_h3_nvfp4.safetensors
minimax_h3_video_vae_int8_convrot.safetensors
minimax_h3_audio_vae_fp32.safetensors
minimax\\minimax_h3_fl2v_lightx2v_turbo_4step_v0.1_comfy.safetensors

Main changes

set working canvas to 864x480
switched to prepend_original=true
split the generated extension into 3 x 10s scenes
kept 5 step defaults for the compact stack
kept context_length=22, encode_mode=video, anchor_mode=head
kept source video as 1.mp4

Why this exists

the smaller stack appears able to hold 480p
15s clips are more likely to OOM
10s clips are a more honest ceiling for repeatable runs