Black Forest Labs
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Overview
Black Forest Labs describes itself as a frontier AI research lab for visual intelligence. We’re the team behind Latent Diffusion, Stable Diffusion, and FLUX—foundational technologies that changed how the world creates images and video. We’re creating the generative models that power how people make images and video—tools used by millions of creators, developers, and businesses worldwide. Our FLUX models are among the most advanced in the world, and we’re just getting started.
The company's FLUX 3 is a multimodal model that generates images, video clips of up to 20 seconds with optional audio, and robot action predictions. Video generation can start from text, an image or keyframes, and the audio can include multilingual speech, effects and ambience. The company's models are available through an API built for production workloads, as open weights that can be run, fine-tuned and customized on a customer's own infrastructure, and in a browser-based playground that requires no code. An enterprise offering combines API access and an open weights license for larger organizations, and the company cites SOC 2 and ISO 27001 compliance.
Headquartered in Freiburg, Germany with a growing presence in San Francisco, we’re scaling fast while staying true to what makes us different: research excellence, open science, and building technology that expands human creativity.
Funding rounds
Disclosed funding: $438.9M across 3 rounds. Latest: Equity Only, 3 Jun 2026.
| Date | Type | Amount |
|---|---|---|
| 3 Jun 2026 | Equity Only | $307.6M |
Office locations
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Latest videos from Black Forest Labs on YouTube
Introducing FLUX 3
FLUX 3 x mimic: The Next Generation of Video-Action Models
FLUX 3 Sneak Peek
Martin Scorsese x Black Forest Labs
Recent posts from the Black Forest Labs blog
- FLUX 3 Image Klein: open weights, 5.6B parameters
Today we are releasing FLUX 3 Image Klein, a 5.6B parameter open weights model for text-to-image generation, image editing and multi-reference generation with up to 10 reference images. It shares core capabilities with the full FLUX 3 Image model: native 4K generation, pixel-perfect editing, and bounding boxes that control where elements are placed or confine edits to a defined area.
- FLUX 3 Image Klein is here.
Open Weights with the quality of a large frontier model. Customizable and fast. 5.6B parameters and runs on a single consumer GPU.