Model Overview Card for FLUX 1.1 [Pro]

Basic Information

• Model Name: FLUX 1.1 [Pro]
• Developer/Creator: Black Forest Labs
• Release Date: October 2, 2024
• Version: 1.1 [Pro]
• Model Type: Text-to-Image Generation Model

Description

Overview

FLUX1.1 [pro] is a new image generation model with inference speed increased sixfold compared to the previous FLUX.1 [pro]. It also features enhanced generation quality and greater accuracy in following prompts.

Key Features

• Speed and Efficiency: Generates images six times faster than FLUX 1.0, with reduced latency that allows for more efficient workflows.
• High Image Quality: Capable of producing images up to 2K resolution while maintaining fidelity to the input prompt.
• Prompt Adherence: Improved algorithms ensure that the model accurately interprets and executes complex user instructions.
• Diversity of Outputs: The model can generate a wide variety of images from the same input, enhancing creative possibilities.
• API Accessibility: Available through the BFL API, allowing developers to integrate it seamlessly into applications.

Intended Use

• Marketing and advertising for quick asset creation.
• Product design for detailed visual prototypes.
• Entertainment industry for character design and concept art.
• Architecture and interior design for enhanced visual presentations.
• Fashion design for generating patterns and textures.

Language Support

Primarily supports English but can handle prompts in multiple languages, broadening its usability.

Technical Details

Architecture

FLUX 1.1 [Pro] employs a hybrid architecture that combines multimodal and parallel diffusion transformer blocks, scaled to 12 billion parameters.

Key architectural innovations include:

• Flow Matching Techniques: This method enhances training efficiency by treating diffusion as a special case, allowing for faster convergence during training.
• Rotary Positional Embeddings: These embeddings improve the model's ability to understand spatial relationships in generated images.
• Parallel Attention Layers: This feature optimizes processing speed and hardware efficiency, making it suitable for real-time applications.

Training Data

The model has been trained on a diverse dataset comprising millions of images from various domains. While specific details about dataset size are proprietary, it is designed to minimize biases and enhance robustness across different contexts.

Knowledge Cutoff

The model's knowledge is current as of October 2024.

Diversity and Bias

FLUX 1.1 [Pro] aims to reduce bias through its varied dataset.

Performance Metrics

• Achieving the highest Elo score in the image arena as of October 1, 2024 (see below).
• Significant reductions in latency compared to previous models, making it suitable for real-time applications.

Comparison to Other Models

In terms of quality, FLUX1.1 [pro] leads with the highest score, offering top-tier image quality, followed by FLUX1 [pro]. DALLE 3 ranks lower but remains a strong general-purpose option, while Stable Diffusion 3 and XL 1.0 models, though positioned lower, may appeal to users prioritizing customization and flexibility over pure image quality.

Regarding the generation time, FLUX1 [schnell] is the clear choice, followed by FLUX1 [dev]. FLUX1.1 [pro] provides a middle ground in performance such as 4.5 seconds per image, which is still relatively fast and suitable for users who prioritize image quality over speed.

Get Flux.1 [schnell] for FREE in our Playground.

Compared to earlier versions like FLUX1 [pro], the new FLUX1.1 [pro] is significantly faster—almost four times quicker. According to official sources, FLUX1.1 [pro] can even reach speeds up to six times faster than its predecessor.

Usage

Code Samples

The model is available on the AI/ML API platform as "flux-pro/v1.1" .

API Documentation

Detailed API Documentation is available here.

Ethical Guidelines

Black Forest Labs emphasizes ethical considerations in AI development, focusing on responsible usage of generated content while ensuring compliance with licensing agreements and promoting transparency in AI-generated outputs.

Licensing

FLUX 1.1 [Pro] is available under a commercial license, allowing both commercial and non-commercial usage rights with specific restrictions outlined in the licensing agreement.

Try Flux 1.1 [Pro] API here.