ComfyUI

GPL-3.0 node-graph engine and API for local image, video and audio models

AI Agents / Agents · GPL-3.0 · 139k

Reviewed 2026-10-19 · last push 2026-10-19 · repo checked 2026-10-19

What's Good

GPL-3.0 (Comfy-Org/ComfyUI), release v0.42.1 (2026-10-19). Native support covers image models such as SDXL, SD3.5, Flux.1/Flux.2 and Qwen Image, image editing, video (Wan 2.x, LTX-Video, HunyuanVideo), audio and 3D. Queueing is asynchronous, only the changed part of a graph re-runs, and VRAM/RAM management with model offloading and quantized models lets big models run on modest cards. Reusable subgraphs, templates and App Mode turn a complex graph into a simple form, and the API slots a workflow into a production pipeline. Desktop app for Windows and macOS, manual install everywhere. ★~139k.

The Catch

It is an engine you operate, not a one-click generator: node graphs have a learning curve, and the large custom-node ecosystem is third-party Python you are running with full access to your machine, so vet what you install. Real speed needs a decent GPU. Comfy Cloud and the partner nodes for closed models are paid; the local engine is free. GPL-3.0 matters if you plan to redistribute a modified build.

Verdict

The default local engine for generative media pipelines — keep custom nodes to ones you trust.

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