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Credit Nynxz's int8 PTD files
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MiniMax H3 is licensed under the MiniMax H3 Community License Agreement, Copyright © 2026 MiniMax. All Rights Reserved.
Pika H3 Flex adapters (Pika-Labs/Pika-H3-Flex)
Copyright © 2026 Mellis, Inc.
These adapters are Model Derivatives of MiniMax H3 and are distributed under the
MiniMax H3 Community License Agreement.
Int8 PTD four-step files (nynxz/MiniMax-H3-PTD-LoRAs)
ptd/ptd_h3_4step_int8.safetensors and ptd/ptd_h3_ref2va_4step_int8.safetensors, by Nynxz.
Modified from the two PTD releases below: the fl2va file converted from the released training
checkpoint to ComfyUI safetensors, and in both the adapter factors quantized to int8 with one
float32 scale per row. Model Derivatives of MiniMax H3, distributed under the MiniMax H3
Community License Agreement. https://huggingface.co/nynxz/MiniMax-H3-PTD-LoRAs/blob/main/NOTICE
PTD few-step students of MiniMax-H3, fl2va four-step (epfl-vita/PTD-weights)
These PTD adapter weights were trained by EPFL VITA Lab based on the paper
"Parametric Trajectory Distillation for Few-Step Video Generation (PTD)". They are
Model Derivatives of MiniMax H3 and are subject to the MiniMax H3 Community License Agreement.
Ref2VA PTD LoRAs, four-step (taobao-content-ai/MiniMax-H3-PTD-LoRAs)
Model Derivatives of MiniMax H3, distributed under the MiniMax H3 Community License Agreement.
Modifications
The files in this repository were modified by WAS (WAS Node Suite) in 2026. Each one is one of
the int8 PTD four-step files above, with a Pika H3 Flex adapter stored once as a shared section
applied at strength 0.5. The tensors of both sources are otherwise unchanged. Each file's
safetensors metadata records both sources by name and SHA-256.