NVIDIA / NVIDIA/Model-Optimizer

Support MiniMax-H3 Visual VAE quantization in ModelOpt

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@cjluo-nv is already working on this.

Since Aug 17, 2026.

feature request
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Description

vLLM-Omni is currently working on production VAE optimization for MiniMax-H3 in
https://github.com/vllm-project/vllm-omni/issues/5948

As a follow-up, would the ModelOpt team be interested in adding quantization support for the MiniMax-H3 Visual VAE?

This could explore FP8, NVFP4, or mixed-precision quantization depending on quality and kernel support, and potentially integrate with the VAE optimization path in vLLM-Omni.

Thanks！

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