OpenAI Image API with gpt-image-1

By unicoughView on GitHub →

This custom node uses OpenAI Image API to generate image (if no input image is provided) or edit image (if input image is provided) with the latest gpt-image-1 model. To use it, you will need to provide your OpenAI API key. This makes the node to be friendly for situations where ComfyUi serves as API server, because you don't have to login like the official OpenAI GPT Image 1 node does.

How much VRAM does OpenAI Image API with gpt-image-1 require?

Direct Answer: The ComfyUI node OpenAI Image API with gpt-image-1 requires a minimum base VRAM of 128MB and is optimized for GPUs with at least 4GB of VRAM. Low VRAM mode is fully supported for resource-constrained setups.

High (2-4GB)
Base VRAM:
128MB (0.1GB)
Recommended GPU:
4GB+ VRAM
Low VRAM Mode:
✓ Supported
Estimation Confidence:
MEDIUM

Interactive VRAM Compatibility Estimator

Estimated Total VRAM: 3.00 GBTarget: 8 GB
✅ Comfortable Fit

Your GPU has plenty of headroom. You can run this node safely with your active configurations!

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Frequently Asked Questions

How much VRAM does OpenAI Image API with gpt-image-1 require?

OpenAI Image API with gpt-image-1 requires a minimum of 128MB (0.1GB) of VRAM for base operation. For optimal performance, a GPU with at least 4GB of VRAM is recommended. This node supports low VRAM mode for resource-constrained setups.

Can I run OpenAI Image API with gpt-image-1 on an RTX 3060, RTX 4070, or RTX 4090?

✅ RTX 3060 (12GB): Yes, fully compatible with 10.7GB headroom. ✅ RTX 4070 (12GB): Yes, fully compatible with 10.7GB headroom. ✅ RTX 4070 Ti (16GB): Yes, fully compatible with 14.3GB headroom. ✅ RTX 4090 (24GB): Yes, fully compatible with 21.5GB headroom

How can I reduce VRAM usage when running OpenAI Image API with gpt-image-1?

OpenAI Image API with gpt-image-1 supports low VRAM mode. To reduce memory usage: (1) Enable --lowvram or --medvram flags in ComfyUI, (2) Reduce batch size to 1, (3) Use fp16 or fp8 precision if supported, (4) Close other GPU applications.

How do I install OpenAI Image API with gpt-image-1 in ComfyUI?

To install OpenAI Image API with gpt-image-1: (1) Navigate to your ComfyUI/custom_nodes directory, (2) Clone the repository: git clone https://github.com/unicough/comfy_openai_image_api, (3) Install dependencies: pip install -r requirements.txt (if present), (4) Restart ComfyUI. Alternatively, use ComfyUI Manager for one-click installation.