Prompt Syntax#

Metastable uses a superset of ComfyUI's prompt syntax.

Weighting#

Similarly to ComfyUI, parts of the prompt can be weighted using the (prompt:weight) syntax.

Examples:

• a photo of a (green:1.4) banana
• a photo of a (green) banana (equals a photo of a (green:1.1) banana) - omitting the weight sets the weight to 1.1
• a photo of a ((green:1.5) banana:2.0) (equals a photo of a (green:3.0) (banana:2.0)) - nested parentheses multiply the weights

Parentheses inside of prompts can be escaled to disable the weighting, e.g. 1990s \(style\).

Prompt inputs in Metastable also support the Ctrl+Up/Down keyboard shortcuts to update the weight of the currently selected text.

Textual inversion/embeddings#

As in ComfyUI, embeddings can be referenced using the embedding:name syntax. File extension can be omitted.

The embedding file must be present in the embeddings model directory.

Random choices#

Parts of the prompt can be selected at random using the following syntax: {choice1|choice2|...}.

Example: a photo of a {red|blue|yellow|green} banana.

Comments#

Metastable introduces a new feature that allows for certain parts of the prompt to be disabled.

Inline comments are designated using the #- comment -# syntax:

Inline comments can be toggled on and off with the Ctrl+/ keyboard shortcut.

Line comments use the # comment syntax: