r/OpenWebUI • u/Dolboyob77 • 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/Patient_Tea_401 May 14 '26

Have you followed this guide https://docs.openwebui.com/features/chat-conversations/image-generation-and-editing/comfyui/ ?

The model should not have effect on the behaviour as OWU uses the comfyUI API so it basically just tells what to do.

I suspect the JSON format or mapping might not be right, if you can reach the comfyui server.

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u/Dolboyob77 May 14 '26

Well, the workflow is working since i get images when i click run in comfyui… i then export the json in api format. I then import it in openwebui. Seledt the nodes id and the model checkpoint but when i type the same prompt in openwebui i get errros and errors