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Gemini Flash 2.0 with Flux Upscaler [Comfyui]

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Updated: Mar 24, 2025
toolcomfyuiworkflowupscalergemini
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Published
Mar 24, 2025
Base Model
Flux.1 D
Hash
AutoV2
12FDA4E21D
Happy Mushroom
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The FLUX.1 [dev] Model is licensed by Black Forest Labs. Inc. under the FLUX.1 [dev] Non-Commercial License. Copyright Black Forest Labs. Inc.
IN NO EVENT SHALL BLACK FOREST LABS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH USE OF THIS MODEL.

Update 24.03:
The new version now achieves significantly better image quality, and thanks to Alimama Turbo, it all happens in just 4 steps. I've also switched the Prompt LLM from Florence2 to LLaVA via a local OLLama, as this setup works slightly better too.



Comfyui Workflow for the ComfyUI Gemini Flash nodes.

First, the image is generated with Gemini, then it goes through a Flux upscaler.
You can choose between Fast and Dev modes.
Dev looks better and works well with slightly higher denoise values, while "Fast" is… well, faster ;)

Installation:

Get your free API key from Google AI Studio:

Visit Google AI Studio

Log in with your Google account

Click on "Get API key" or go to settings

Create a new API key

Copy the API key for use in config.json

Set up your API key in the config.json file (will be created automatically on first run)

https://github.com/ShmuelRonen/ComfyUI-Gemini_Flash_2.0_Exp?tab=readme-ov-file