fal-ai/flux/dev

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.

Inference

Commercial use

Streaming

Schema

LLMs

Playground API Examples

Open in Sandbox

Input

Prompt*

Additional Settings

Customize your input with more control.

Streaming

or try similar models free in Sandbox

Result

Idle

What would you like to do next?

Your request will cost $0.025 per megapixel.

Images are billed by rounding up to the nearest megapixel.

Readme

FLUX.1 [dev] - High-Performance Image Generation API

Transform your creative vision into stunning images with FLUX.1 [dev], a state-of-the-art text-to-image generation model powered by a 12 billion parameter flow transformer. Built for both speed and quality, FLUX.1 [dev] delivers professional-grade results suitable for personal and commercial use.

Key Benefits

Create production-ready images faster and with greater control. FLUX.1 [dev] enables you to:

Generate high-fidelity images from natural language descriptions
Achieve consistent results across multiple generations
Scale from prototype to production with enterprise-grade reliability
Access both personal and commercial licensing options
Deploy anywhere with flexible API integration
Use streaming capabilities for real-time generation

Popular Use Cases

Content Creation Generate marketing visuals, social media assets, and blog illustrations at scale. Perfect for agencies and content teams who need consistent, high-quality imagery.

Product Development
Create concept art, UI mockups, and design variations for rapid prototyping. Ideal for designers exploring visual directions.

E-commerce Generate product lifestyle images, seasonal campaigns, and A/B testing visuals to boost conversion rates.

Entertainment Produce game assets, storyboard illustrations, and creative concept art for media projects.

Technical Overview

FLUX.1 [dev] is built on advanced flow transformer architecture that enables:

Performance: 12B parameters optimized for rapid inference
Flexibility: Support for multiple generation approaches including streaming
Quality: Enhanced image coherence and composition
Licensing: Suitable for both personal and commercial use

Getting Started

Getting up and running with FLUX.1 [dev] is straightforward. Here's how to begin:

Get your API key at https://fal.ai/login
Install the client library:

bash
# For JavaScript/TypeScript
npm install --save @fal-ai/client

# For Python
pip install fal-client

Make your first API call:

javascript
import { fal } from "@fal-ai/client";

const result = await fal.subscribe("fal-ai/flux/dev", {
  input: {
    prompt: "A serene mountain landscape at sunset, photorealistic style"
  }
});

Streaming Support

FLUX.1 [dev] supports streaming requests for real-time generation:

javascript
import { fal } from "@fal-ai/client";

const stream = await fal.stream("fal-ai/flux/dev", {
  input: {
    prompt: "Your detailed prompt here"
  }
});

for await (const event of stream) {
  console.log(event);
}

const result = await stream.done();

Best Practices

For optimal results when using FLUX.1 [dev]:

Keep prompts clear and specific while maintaining natural language
Start with default parameters and adjust based on results
Consider using negative prompts to refine unwanted elements
Monitor usage for cost-effective scaling
Take advantage of streaming for interactive applications

Advanced Features

Image Style Control

Fine-tune the artistic direction of your generations through comprehensive style parameters. Adjust attributes like composition, lighting, and artistic influence while maintaining consistent quality.

API Parameters

The model supports various configuration options:

CFG Scale: Control prompt adherence (default: 3.5)
Safety Checker: Enable content safety filtering
Output Format: Choose between PNG and other formats
Number of Images: Generate multiple variations
Speed Settings: Optimize for generation speed

Batch Processing

Generate multiple variations efficiently with built-in batching support. Perfect for creating asset collections or exploring creative variations.

Integration Support

Our comprehensive SDK support makes integration seamless across your technology stack:

REST API for platform-agnostic integration
Native SDKs for Python and JavaScript/TypeScript
Streaming capabilities for real-time applications
Detailed documentation and code examples
Enterprise support options available

Pricing and Usage

Your request will cost $0.025 per megapixel. Images are billed by rounding up to the nearest megapixel. Our transparent, usage-based pricing scales with your needs:

Cost-effective: $0.025 per megapixel
Commercial usage rights included
No subscription fees or minimum commitments
Transparent billing with clear pricing structure

View detailed pricing or contact sales for enterprise solutions.

Licensing

FLUX.1 [dev] is suitable for both personal and commercial use through fal.ai's platform. The model provides flexible licensing options that support various use cases from individual projects to enterprise deployments.

Migration Guide

Moving from other platforms? Our migration tools and documentation help ensure a smooth transition to FLUX.1 [dev]. Contact our support team for personalized migration assistance and best practices.

Getting Help

We're here to support your success with FLUX.1 [dev]:

Documentation: Comprehensive guides at https://docs.fal.ai
Support: Technical assistance via support@fal.ai
Community: Join our Discord for tips and discussions
Updates: Regular model improvements and feature additions

Ready to transform your creative vision into reality? Get started at https://fal.ai/models/fal-ai/flux/dev.