ComfyUI Adds Native Loop Nodes: Guide Shows Iterative Video Extension and MLLM-Judged Auto-Editing
nomadoor · reddit · 2026-09-22
ComfyUI recently added a set of general-purpose loop nodes to its core, and Reddit user nomadoor published a detailed guide. Highlights:
- What's possible with core nodes only: repeatedly extending seconds of generated video into much longer clips; letting an MLLM judge results and automatically re-edit an image iteratively; even computing Fibonacci sequences in a workflow.
- Why it's hard: ComfyUI workflows were previously one-way graphs you could understand by following wires; loops break that intuition.
- Guide: comfyui.nomadoor.net/en/data-utilities/loop/
Expect a wave of advanced loop-based workflows in the community.
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