Add model support for janus-pro-7b-webgpu

[adrian-leung-zhare-ai]

Model description

Hi @xenova,

I converted the Janus Pro 7B to onnx with webgpu support here:
https://huggingface.co/Zhare-AI/janus-pro-7b-webgpu
I wonder how to make it compatible with Transformers.js like what you did for Janus 1.3B and Janus Pro 1.3B because it failed to initialise.

Many thanks,
Adrian

Prerequisites

• The model is supported in Transformers (i.e., listed here)
• The model can be exported to ONNX with Optimum (i.e., listed here)

Additional information

No response

Your contribution

I will defo help

[adrian-leung-zhare-ai]

@xenova Hi Joshua, do you mind to share the conversion code for the Janus Pro 1.3B with me please? I want to convert the Janus Pro 7B to be compatible with the latest Transformer.js which is right under the 4GB limit for browser with lesser layers.