> ## Documentation Index
> Fetch the complete documentation index at: https://dripart-docs-nodes-section-20260729-203608.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Nodes

> The three kinds of nodes in ComfyUI: core nodes, partner nodes, and custom nodes.

A node is a single unit of work in a workflow. It takes inputs, does something with them (load a model, encode a prompt, sample, save an image), and passes its outputs to the next node. Workflows are built by connecting nodes together.

## Core nodes

Built-in nodes maintained by the Comfy Org team. They ship with every ComfyUI install and run on your own hardware.

<Card title="Core Nodes" icon="cube" href="/built-in-nodes/overview">
  Reference for every built-in node, grouped by category.
</Card>

## Partner nodes

Nodes that provide access to third-party models (Nano Banana, Seedance, Kling, and others). They are included with ComfyUI, run on the provider's infrastructure, and cost [credits](/interface/credits) to run.

<Card title="Partner Nodes" icon="handshake" href="/tutorials/partner-nodes/overview">
  Prerequisites, pricing, and per-model guides.
</Card>

## Custom nodes

Community-built nodes you install yourself from the [Comfy Registry](https://registry.comfy.org), usually through ComfyUI Manager. You can also write and publish your own.

<Card title="Custom Nodes" icon="puzzle-piece" href="/custom-nodes">
  Installing, managing, developing, and publishing custom nodes.
</Card>