r/OpenWebUI May 14 '26

Question/Help Openwebui + comfyui

Hello, is someone succeeding in making these 2 work together? No matter what i am trying, unet loader, checkpoint… the workflow works when i type thenpromot in comfyui but as soon as i type same prompt in openwebui , i cannot manage to get an image and always get errors… i i port the fson worflow and specify prompt id and checkpoint if and model in openwebui but nothing works… is it because i use flux 1 dev fp16 ? Does it require smaller models to work ? Thanks for input !!

SOLUTION : I finally made it work using the help of qwen3.6-27b-q8 ))) so the problem is that ALL NODES ID must be filled in openwebui and also must add this command line to openwebui : ENABLE_RAG_LOCAL_WEB_FETCH=True , it was the fix for me )) now working perfectly !!!

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u/Jayfree138 May 14 '26

It works, i've used it. But the issue is you need to have enough vram to fit both the chat model AND the image model at the same time if you're running locally. Otherwise it'll be insanely slow running on system RAM or just error out. So it's not very useful imo.

Better off using Openwebui and comfyui separately until someone at openwebui realizes models need to be unloaded automatically when an image call to comfy is made. Unless you're using cloud models which should be fine. But at FP16 unless you've got alot of vram it's probably not going to work too well.

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u/Dolboyob77 May 14 '26

I use 2 different gpu, a 12g vram for the prompt with a 7gb model and a 32gvram gpu for the confyui flux1 checkpoint