Black Forest Labs

AI · Freiburg, DE

Generative AI lab from the creators of Stable Diffusion.

Founders

Robin Rombach (Germany · ♂) — As a PhD researcher he co-invented latent diffusion and Stable Diffusion, then left Stability AI to found Black Forest Labs and build the FLUX image models.
Andreas Blattmann (Germany · ♂) — A co-author of Stable Diffusion from the LMU Munich CompVis lab, he co-founded Black Forest Labs to advance generative visual models.
Patrick Esser (Germany · ♂) — A co-creator of latent diffusion and Stable Diffusion, he joined former lab-mates to found Black Forest Labs as a frontier visual AI lab.
Dominik Lorenz (Germany · ♂) — One of the original latent diffusion authors, he co-founded Black Forest Labs to commercialize open generative image and video models.

Shares the most investors with (number = shared investors):

Date	Round	Amount
Dec 2025	Series B Freiburg AI startup Black Forest Labs raised $300M (a16z, NVIDIA and many others) at a $3.25B post-money valuation, reaching unicorn status.	$300M
Aug 2024	Seed Black Forest Labs, a German genAI lab from the Stable Diffusion creators, raised a $31M seed led by Andreessen Horowitz.	$31M

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Data is community-curated and may be incomplete.