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Black Forest Labs•Vision, Image & VideoOpen WeightsFrontier Milestone

FLUX.1 [dev]

State-of-the-art 12B rectified flow transformer delivering photorealistic text-to-image synthesis.

Official Paper / AnnouncementHugging Face WeightsDeveloper API DocsCompare with Another Model

Technical Specification Matrix

Parameters12 Billion
Context WindowText-to-Image Diffusion
Access ModelOpen Weights
LicenseNon-Commercial FLUX.1 [dev] License
Release DateAugust 2024
Author LabBlack Forest Labs

Architecture & Engineering Overview

Underlying Neural Architecture

12B Rectified Flow Transformer (MMDiT)

Editorial Analysis

Created by the original engineers of Stable Diffusion, FLUX.1 leverages 12 billion parameters and flow matching to produce unmatched typographic accuracy, intricate anatomical fidelity, and photorealistic lighting.

Verified Core Competencies

Accurate In-Image Typography
Photorealistic Human Anatomy
Flow Matching Latent Dynamics
LoRA Fine-tuning Ecosystem

Head-to-Head Comparisons

Comparison Duel

FLUX.1 [dev] vs Midjourney v6.1

The definitive generative image synthesis comparison between Black Forest Labs' 12B open weights flow transformer and Midjourney's commercial platform.

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