OpenAIChatNode - ComfyUI Built-in Node Documentation

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

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This node generates text responses from an OpenAI model. It sends your text prompt (and optionally images or files) to an OpenAI model and returns the generated text response.

Inputs

Parameter	Data Type	Required	Range	Description
prompt	STRING	Yes	-	Text inputs to the model, used to generate a response (default: empty)
persist_context	BOOLEAN	Yes	-	This parameter is deprecated and has no effect (default: False)
model	COMBO	Yes	gpt-5.5-pro gpt-5.5 gpt-5 gpt-5-mini gpt-5-nano gpt-4.1 gpt-4.1-mini gpt-4.1-nano o4-mini o3 o1-pro o1	The model used to generate the response (default: gpt-5)
images	IMAGE	No	-	Optional image(s) to use as context for the model. To include multiple images, you can use the Batch Images node
files	OPENAI_INPUT_FILES	No	-	Optional file(s) to use as context for the model. Accepts inputs from the OpenAI Chat Input Files node
advanced_options	OPENAI_CHAT_CONFIG	No	-	Optional configuration for the model. Accepts inputs from the OpenAI Chat Advanced Options node

Outputs

Output Name	Data Type	Description
output_text	STRING	The text response generated by the OpenAI model

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