---
title: "FLUX Pro 1.1 Ultra Text-to-Image API & Playground - Comfy"
description: "FLUX Pro 1.1 Ultra Text-to-Image by Black Forest Labs: Generates an image from text with optional reference image and aspect ratios from 1:4 to 4:1."
canonical: https://comfy.org/hub/models/flux-pro-1-1-ultra-text-to-image/
lang: en
index: https://comfy.org/llms.txt
---

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Black Forest Labs

[Generate images](https://comfy.org/hub/models/?useCase=generate-images)

# FLUX Pro 1.1 Ultra Text-to-Image

Generates an image from text with optional reference image and aspect ratios from 1:4 to 4:1.

12.7 credits /Run

- [text-to-image](https://comfy.org/hub/models/?q=text-to-image)

[Read docs](https://docs.comfy.org/development/comfy-router/models#black-forest-labs)

Input

Prompt

Reference Image

Select or drop an image PNG, JPEG, WEBP ·  up to 25 MiB

Aspect ratio

Advanced settings

Image influence

Blend from prompt only (0) to reference image only (1).

Output format

Prompt enhancement

Let the model expand or refine your prompt before generation.

Natural appearance

Generate a less processed, more natural look.

Seed

Reuse a seed with the same inputs to make results more repeatable.

Output

![FLUX Pro 1.1 Ultra Text-to-Image: Breakdance freeze in chalk](https://media.comfy.org/website/workshop/bfl/flux-pro-1.1-ultra/breakdance-freeze-in-chalk.png)

Example

## Try an example

- Low-angle studio photograph, 35mm lens, of a breakdancer holding a baby-freeze: torso low, one forearm planted on a matte black floor, the opposite leg kicked high behind him, head turned toward the camera with a fierce grin. A burst of white chalk dust hangs in the air around his planted hand. He wears a loose charcoal tracksuit with an orange stripe, clean white sneakers and a black beanie. Direct bare flash from the camera gives crisp specular highlights on skin and fabric with a hard falloff into a black cyc wall. Anatomically correct, five fingers, sharp particles, graphic and energetic.

## More from Black Forest Labs

[Browse all Browse all models](https://comfy.org/hub/models/)

- [Black Forest Labs

  ### FLUX 2 Max

  Text to Image

  bfl flux flux-2 text-to-image premium](https://comfy.org/hub/models/flux-2-max-text-to-image/)
- [Black Forest Labs

  ### FLUX 2 Pro

  Text to Image

  bfl flux flux-2 text-to-image](https://comfy.org/hub/models/flux-2-pro-text-to-image/)
- [Black Forest Labs

  ### FLUX Pro 1.1

  Text to Image

  bfl flux text-to-image legacy](https://comfy.org/hub/models/flux-pro-1-1-text-to-image/)
- [Black Forest Labs

  ### FLUX Pro Expand

  Image to Image

  bfl flux expand outpaint edit image-edit](https://comfy.org/hub/models/flux-pro-expand/)