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comfyui-genmedia-gemini-api

ComfyUI custom nodes for Google GenMedia models, with Gemini API (API key)

Sourcegithub.com/catnipglitch/comfyui-genmedia-gemini-api

Mainteneur@catnipglitchUnratedClasse

Profil du package

Statut: Vérifié
Éditeur: @catnipglitch
Source: GitHub

LIREMOI

Based on GoogleCloudPlatform/comfyui-google-genmedia-custom-nodes (Apache 2.0). Added: Gemini API key authentication, Nano Banana 2 (Gemini 3.1 Flash Image), Veo 3.1 Lite, and Placeholder nodes for workflow prototyping.

This is not an officially supported Google product. This project is not eligible for the Google Open Source Software Vulnerability Rewards Program.

comfyui-genmedia-gemini-api

ComfyUI custom nodes for Google GenMedia models, with Gemini API (API key) and Vertex AI (ADC) dual authentication support.

Supported models:

Gemini
Gemini 2.5 Flash Image (Nano Banana 🍌)
Gemini 3.1 Flash Image (Nano Banana 2 🍌🍌) — NEW
Gemini 3 Pro Image (Nano Banana Pro 🍌)
Imagen3
Imagen4
Lyria2
Veo2
Veo3.1 / Veo3.1 Fast / Veo3.1 Lite — NEW
Virtual-try-on
Placeholder nodes (🧪) — NEW: API-free dummy image generation for workflow testing

Authentication

Option A: Gemini API key (recommended for containers)

Set one of the following environment variables. No GCP project or region required.

export GOOGLE_API_KEY=AIza...
# or
export GEMINI_API_KEY=AIza...

Option B: Vertex AI (ADC)

All nodes accept gcp_project_id and gcp_region as optional inputs and use the Vertex AI APIs. If you are running ComfyUI on GKE as described in ComfyUI on GKE guide, the Vertex AI APIs will be authenticated with GKE workload identity and no additional action is required.

If you are running your own (local) ComfyUI installation, you will need to install the custom nodes and authenticate to Google Cloud as a user or a Service Account. See installation section for details.

Pricing

All the custom nodes provided with this repo use Vertex AI APIs to generate content and hence, Vertex AI pricing is applied to each API call. See Vertex AI Pricing for the model that you want to use.

Note : If you store the content in Google Cloud Storage using these custom nodes, refer to Google Cloud Storage pricing.

Installing the Google Generative Media custom nodes

ComfyUI on GKE

If you want to run ComfyUI on GKE and use these custom nodes, follow the ComfyUI on GKE guide that will spin up ComfyUI on GKE with these custom nodes installed and ready to use.

ComfyUI running locally

If you are running ComfyUI locally or at a place other than GCP and want to use these custom nodes, you need to perform the following steps to install them:

Download these custom nodes in one of the following ways:
- Using the ComfyUI Manager
  - Go to ComfyUI Manager --> Custom Node Manager --> search for comfyui-google-genmedia-custom-nodes. Click Install.
- Manual installation using git
  - Open the terminal on the machine that is running ComfyUI and change to the directory where ComfyUI is running from.
```
cd <PATH_TO_COMFYUI_INSTALLATION>

E.g if your ComfyUI is running from "/home/user/username/ComfyUI", replace <PATH_TO_COMFYUI_INSTALLATION> with "/home/user/username/"
```
  - Change to the custom_nodes folder.
```
 cd ComfyUI/custom_nodes
```
  - Clone this repository in the custom_nodes folder:
```
git clone https://github.com/GoogleCloudPlatform/comfyui-google-genmedia-custom-n
```