> ## Documentation Index
> Fetch the complete documentation index at: https://fal.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Fastest FLUX Endpoint
> We believe fal has the fastest FLUX endpoint in the planet. If you can find a faster one, we guarantee to beat it within one week. 🤝
`text-to-image`
FLUX.1 \[schnell] is a 12 billion parameter flow transformer that generates high-quality images from text in 1 to 4 steps, suitable for personal and commercial use.
`optimized`
`text-to-image`
FLUX.1 \[dev] is a 12 billion parameter flow transformer that generates high-quality images from text. It is suitable for personal and commercial use.
`flux`
Here is a quick guide on how to use this model from an API in less than 1 minute.
Before we proceed, you need to create an [API key](https://fal.ai/dashboard/keys).
This key secret will be used to authenticate your requests to the fal API.
```js theme={null}
fal.config({
credentials: "PASTE_YOUR_FAL_KEY_HERE",
});
```
Now you can call our Model API endpoint using the [fal js client](/model-apis/model-endpoints):
```js theme={null}
import { fal } from "@fal-ai/client";
const result = await fal.subscribe("fal-ai/flux/dev", {
input: {
prompt:
"photo of a rhino dressed suit and tie sitting at a table in a bar with a bar stools, award winning photography, Elke vogelsang",
},
});
```
**Note:**
Image Uploads Should Not Waste GPU Cycles
We upload the output image in a background thread so we don't charge any GPU
time for time spent on the GPU that is not directly inference.