Nodes - Melius docs

A node is a single unit on the canvas. Every node has a type that determines what it produces.

Node types

Type	What it does
`text`	Runs a language model and produces text.
`image`	Runs an image model and produces an image.
`video`	Runs a video model and produces a video clip.
`audio`	Runs an audio model and produces sound — speech, music, or sound effects.
`file`	Holds a user-uploaded image. No generation runs on this node.
`custom_text`	A static block of text. Use it to hold reusable prompt fragments.
`group`	A visual container that holds other nodes.

Anatomy

Every generative node has:

A prompt — the user-authored instructions.
A model — the AI model that will run.
Settings specific to its type (aspect ratio, resolution, duration, etc.).
Input handles — where edges come in.
Output handles — where edges go out.
Versions — one per run.

Creating nodes

You can create nodes by:

Clicking the canvas toolbar.
Pressing / and typing the node type.
Dragging from the output handle of an existing node (Melius will offer to create a matching downstream node).
Calling node_create from the MCP server.

Groups

Group nodes are containers. Select multiple nodes and choose Group to wrap them. Groups are useful for keeping a multi-step pipeline visually tidy.

Last modified on August 3, 2026

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