It seems a bug with “scaled_fp8“ model since update 0.4.0

Open zdjun1984 opened this issue 4 weeks ago • 2 comments

Custom Node Testing

[x] I have tried disabling custom nodes and the issue persists (see how to disable custom nodes if you need help)

Your question

error1: WARNING, you accessed scaled_fp8 from the model config object which doesn't exist. Please fix your code error2: unet unexpected: ['scaled_fp8']

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No response

Dec 13 '25 16:12 zdjun1984

Can confirm, getting AttributeError: module 'comfy.ops' has no attribute 'scaled_fp8_ops' when trying to run the load fp8 scaled model node from the Chroma fp8 models.

Dec 13 '25 18:12 VantomPayne

For me this happens on torch 2.9 but not 2.7 despite same versions and then FP8 weights are directly sent to triton as FP8 without casting.

Dec 17 '25 15:12 Ph0rk0z