Question 1

What is Birefnet?

Accepted Answer

Birefnet is an AI model. You can run it locally in ComfyUI with full control over every parameter, or access it through Comfy Cloud. ComfyUI's node-based workflow editor lets you connect Birefnet with ControlNets, LoRAs, upscalers, and custom nodes to build any pipeline you need. There are 2 community workflow templates using Birefnet on Comfy Hub, ready to load and customize.

Question 2

How do I use Birefnet in ComfyUI?

Accepted Answer

Follow the step-by-step tutorial at https://docs.comfy.org/tutorials/utility/remove-background-birefnet. You can also load any of the 2 community workflow templates that use Birefnet directly in ComfyUI.

Question 3

How many ComfyUI workflows use Birefnet?

Accepted Answer

There are 2 community workflow templates that use Birefnet on Comfy Hub. Each template is ready to run in ComfyUI and can be customized to suit your project.

Question 4

Is Birefnet free to use in ComfyUI?

Accepted Answer

ComfyUI is free and open source. Birefnet weights are available to download from Hugging Face. You only pay for compute when running on Comfy Cloud; local inference on your own hardware is always free.