MiniMax H3 R2V Master

Summary

Best-current MiniMax H3 reference-first generation master for Chris's actual priority: reference-to-video first, not generic t2v. This maintained version now promotes the quality features from the Chris working graph: second-pass enhancement enabled, RTXVideoSuperResolution enabled, and the non-Heretic AWQ text-encoder path.

Status

best-current-r2v-master

Workflow asset

workflow.json

This pass

Promoted the Chris working quality lane into the maintained master.
Enabled the built-in 2 Pass path.
Enabled the built-in HIGH QUALITY path so RTXVideoSuperResolution runs.
Swapped away from the Heretic text encoder to the AWQ MiniMax encoder path.
Kept the prompt structure generic and reusable for the single-clip ref2v lane.

Built from

custom/chris/minimax-h3-extender-working/
current MiniMax Ref2VA prompt guidance in optimized/notes/minimax-h3-ref2va-prompt-guidelines.md
local MiniMax continuation lessons gathered from earlier optimized ref2v and Contex Loop experiments

Key model stack

minimax_h3_ref2va_pruned_int8_convrot.safetensors
qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors
minimax_h3_video_vae_int8_convrot.safetensors
minimax_h3_audio_vae_fp32.safetensors
minimax\minimax_h3_ref2v_turbo_4step_v0.1_comfyui_bf16.safetensors

Main changes

keeps the safer 864x480 working canvas for the main ref2v lane
uses the AWQ MiniMax text encoder instead of the Heretic path
enables the graph's 2 Pass lane
enables the graph's HIGH QUALITY lane so RTXVideoSuperResolution runs
sets the RTX upscale multiplier to 2x
keeps Sol Attn enabled in the promoted working graph
keeps generic reusable prompt text in the single-clip lane
replaces the old Chris-specific continuation plan with a generic three-shot starter

Current working settings

main ref2v resolution: 864x480
source timeline basis: 24 fps
main scheduler lane: simple
standard sampler option present: euler_ancestral
high-quality sampler option present: euler_ancestral_cfg_pp
second-pass denoise in the promoted working graph: 0.4
starter continuation plan defaults: 10s clips, 8 plan steps
RTX upscale: 2x, ULTRA

When to use this

use this first when the goal is: keep one or more reference images stable and generate a higher-quality MiniMax H3 ref2v clip with the current quality passes enabled
use optimized/image-to-video/minimax-h3-extension-master/ instead when the main job is extending an already existing source video rather than generating a new reference-driven chain

Notes

This master is now heavier than the older lightweight w4a8 / Heretic lane.
It is the quality-biased ref2v path, not the cheapest local-safe path.
The graph still carries extra continuation machinery from the promoted Chris working workflow, but the maintained ref2v lane is the generic single-clip starter built around the reusable prompt block and quality passes.