ComfyUI custom nodes for GPT-Image-2 — OpenAI's latest image generation model. Generate and edit stunning AI images directly inside ComfyUI using the muapi.ai API. If you wish to check the API documentation check this GPT-Image-2 API.

What is GPT-Image-2?

GPT-Image-2 is OpenAI's latest image generation model with native image editing support. It supports:

Text-to-Image — generate high-quality images from a text description
Image-to-Image — edit or transform up to 9 reference images guided by a prompt

Nodes

Node	Description
🔑 GPT-Image-2 API Key	Set your key once — wire to all nodes
🖼️ GPT-Image-2 Text to Image	Generate an image from a text prompt
🖼️ GPT-Image-2 Image to Image	Edit or transform up to 9 reference images

Installation

Via ComfyUI Manager (recommended)

Open ComfyUI Manager → Install via Git URL
Paste: https://github.com/Anil-matcha/gpt-image-2-comfyui
Restart ComfyUI

Manual

cd ComfyUI/custom_nodes
git clone https://github.com/Anil-matcha/gpt-image-2-comfyui
pip install -r gpt-image-2-comfyui/requirements.txt

Quick Start

Sign up at muapi.ai and go to Dashboard → API Keys → Create Key
Right-click the ComfyUI canvas → Add Node → 🖼️ GPT-Image-2
Add a 🔑 GPT-Image-2 API Key node, paste your key, and wire its output to any generation node
Write a prompt and hit Queue Prompt

Tip: If you use the MuAPI CLI, run muapi auth configure --api-key YOUR_KEY once and all nodes will pick it up automatically — no need to paste the key anywhere.

Node Reference

🔑 GPT-Image-2 API Key

Set your muapi.ai API key once and wire the output to all generation nodes. Alternatively, leave every api_key field blank — nodes automatically read from ~/.muapi/config.json if you've authenticated via the CLI.

Field	Description
`api_key`	Your muapi.ai API key

Output: api_key string (wire to generation nodes)

🖼️ GPT-Image-2 Text to Image

Generate a high-quality image from a text prompt.

Field	Description
`prompt`	Describe the image you want to generate
`api_key`	(optional) API key — wire from the API Key node or leave blank

Outputs:

Output	Type	Description
`image`	IMAGE	Generated image as a ComfyUI tensor
`image_url`	STRING	CDN URL of the generated image
`request_id`	STRING	Generation request ID

Example prompt:

A photorealistic image of a red fox sitting in a snowy forest at dusk.

🖼️ GPT-Image-2 Image to Image

Edit or transform up to 9 reference images guided by a text prompt.

Field	Description
`prompt`	Describe the desired transformation or style
`image_1` … `image_9`	(optional) Reference images to edit
`api_key`	(optional) API key — wire from the API Key node or leave blank

Outputs:

Output	Type	Description
`image`	IMAGE	Generated image as a ComfyUI tensor
`image_url`	STRING	CDN URL of the generated image
`request_id`	STRING	Generation request ID

Example prompt:

Transform this product image into a premium e-commerce poster style.

API

All requests go through the muapi.ai API. Get your API key from the dashboard.

Endpoint	Method	Description
`/api/v1/gpt-image-2-text-to-image`	POST	Submit a text-to-image request
`/api/v1/gpt-image-2-image-to-image`	POST	Submit an image-to-image request
`/api/v1/predictions/{request_id}/result`	GET	Poll for result

License

MIT — see LICENSE.