TextGenerateLTX2Prompt - ComfyUI Built-in Node Documentation

Complete documentation for the TextGenerateLTX2Prompt node in ComfyUI. Learn its inputs, outputs, parameters and usage.

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The TextGenerateLTX2Prompt node is a specialized version of a text generation node. It takes a user’s text prompt and automatically formats it with specific system instructions before sending it to a language model for enhancement or completion. The node can operate in two modes: text-only or with an image reference, using different system prompts for each case.

Inputs

Parameter	Data Type	Required	Range	Description
clip	CLIP	Yes		The CLIP model used for text encoding.
prompt	STRING	Yes		The raw text input from the user that will be enhanced or completed.
max_length	INT	Yes		The maximum number of tokens the language model is allowed to generate.
sampling_mode	COMBO	Yes	"greedy" "top_k" "top_p" "temperature"	The sampling strategy used to select the next token during text generation.
image	IMAGE	No		An optional input image. When provided, the node uses a different system prompt that includes a placeholder for image context.

Note: The behavior of the node changes based on the presence of the image input. If an image is provided, the generated prompt will be formatted for an image-to-video task. If no image is provided, the formatting will be for a text-to-video task.

Outputs

Output Name	Data Type	Description
output	STRING	The enhanced or completed text string generated by the language model.