Black Forest Labs FLUX

FLUX is a family of AI image generation models created by Black Forest Labs, the team behind Stable Diffusion. FLUX models are known for their high image quality, prompt adherence, and versatility across artistic styles. They are available through platforms like Replicate, fal.ai, Together.ai, and Fireworks.

Available Models

• FLUX 1.1 Pro Ultra: Highest quality, best for professional use
• FLUX 1.1 Pro: High quality with good speed
• FLUX Pro: Original professional model
• FLUX Dev: Development and experimentation model
• FLUX Schnell: Fastest model, optimized for speed over quality

Getting Started

Using via Replicate

npm install @ai-sdk/replicate

import { replicate } from '@ai-sdk/replicate';
import { experimental_generateImage as generateImage } from 'ai';

const { image } = await generateImage({
  model: replicate.image('black-forest-labs/flux-1.1-pro-ultra'),
  prompt: 'A vibrant abstract painting with bold geometric shapes',
});

Using via fal.ai

import { fal } from '@ai-sdk/fal';
import { experimental_generateImage as generateImage } from 'ai';

const { image } = await generateImage({
  model: fal.image('fal-ai/flux-pro/v1.1-ultra'),
  prompt: 'A serene Japanese garden in autumn',
});

FLUX vs Other Image Models

Best Practices

• Use FLUX Pro Ultra for final, client-facing images
• Use FLUX Schnell during development for fast iteration
• FLUX Dev is open-weight and available for local experimentation
• Provide detailed, descriptive prompts for best results

Resources

• Black Forest Labs
• FLUX on Replicate
• AI SDK Replicate Provider