# Fast LCM Image Generator (https://docs.fuser.studio/docs/nodes/image/fast-lcm-image-generator)

_Provided by [Fal](https://fal.ai) — [Learn More](https://fal.ai/models/fal-ai/fast-lcm-diffusion)._

## Inputs [#inputs]

- **Prompt** (`textarea`) — The prompt to use for generating the image. Be descriptive for best results.

- **Negative Prompt** (`textarea`) — What to exclude from the image. Use it to address details you don't want.

   Optional: `true`

- **Model** (`dropdown`) — The model to use for generation.

   Optional: `true` • Default: `stabilityai/stable-diffusion-xl-base-1.0` • Accepts: `flow.nodes.FalFastLcmNode.inputs.model_name.items.stabilityai/stable-diffusion-xl-base-1.0`, `SD v1.5 (Faster, lower quality)`

- **Image Size** (`dropdown`) — The size of the generated image.

   Optional: `true` • Default: `square_hd` • Accepts: `Square HD`, `Square`, `Portrait 4:3`, `Portrait 16:9`, `Landscape 4:3`, `Landscape 16:9`

- **Steps** (`slider`) — The number of inference steps to perform.

   Optional: `true` • Default: `6` • Minimum: `1` • Maximum: `20`

- **CFG Scale** (`slider`) — How closely to follow the prompt (higher = more faithful).

   Optional: `true` • Default: `0` • Minimum: `0` • Maximum: `20`

- **Seed** (`seed`) — The same seed and prompt will output the same image every time.

   Optional: `true` • Default: `59939`

- **Expand Prompt** (`toggle`) — Automatically expand the prompt to include more details.

   Optional: `true` • Default: `true`

## Outputs [#outputs]

- **Image** (`image`) — The generated image.