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Black Forest Labs

Black Forest Labs

Open-source AI image generation models powering tools like Grok and Adobe.

13
Open Roles
Founded
2024
Headquarters
Freiburg, Germany
Latest Round
Series B
Est. Valuation
~$3,250M
Seed
Series A
Series B
Series C
Series D+

Investment Thesis

🚀 What They Do

Black Forest Labs builds the FLUX family of text-to-image foundation models. Founded by the researchers behind Stable Diffusion, their models are used by Adobe, Grok, Picsart, ElevenLabs, and VSCO.

Germany's most valuable AI company at $3.25B valuation. Champions open-source while offering commercial API access.

🔥 The Problem

Creating high-quality AI-generated images requires frontier research expertise that very few teams possess, and closed models limit how creators and enterprises can customize and deploy.

🛠️ The Fix

The FLUX family of open-source and commercial image generation models that power 9 of the 10 most-downloaded models on the planet, with 400M+ total downloads and an API for enterprise use.

Why Now

AI-generated images are transforming film, design, advertising, and research — demand is exploding and open-source models are winning the distribution war just as they did with Linux and Postgres.

The Proof

Germany's most valuable AI company at $3.25B valuation, powering Adobe, Grok, Picsart, ElevenLabs, and VSCO with $400M raised in under 18 months from founding.

👥 The Team

Robin Rombach (CEO), Patrick Esser, and Andreas Blattmann — the researchers who literally invented the latent diffusion architecture behind Stable Diffusion at LMU Munich and Heidelberg University.

Funding & Investors

$8B$6B$4B$2B$0
Founded
Series A
Oct 2024
Amount Raised: $100M
Series A
Oct 2024
Post-Money Valuation: $500M
Series A
$500M est. val
$100M raised
Series B
Dec 2025
Amount Raised: $300M
Series B
Dec 2025
Post-Money Valuation: $3.3B
Series B
$3.3B est. val
$300M raised
2024202520262027
Amount raisedEst. post-money valuationFounded
Series B$300MDec 2025
Lead: Salesforce Ventures · a16z, NVIDIA, General Catalyst, Northzone, Temasek
Series A$100MOct 2024
Lead: Andreessen Horowitz · General Catalyst

Headcount Growth

200150100500
2
36
95
108*
2024202520262027
*Forecast assumes all 13 open roles are filled

13 Open Roles

Account Executive
3mo agoGTM0
Forward Deployed, Robotics Engineer
1mo agoGTM0
Management Accountant
5d agoOperations0
Member of Technical Staff - Image / Video Generation
3mo agoResearch0
Member of Technical Staff - Infrastructure Engineer
3mo agoEngineering0
Member of Technical Staff - Model Serving / API Backend Engineer
2mo agoEngineering0
Member of Technical Staff - Post Training
3mo agoResearch0
Member of Technical Staff - Pretraining
3mo agoResearch0
Member of Technical Staff - Research Engineer
27d agoResearch0
Member of Technical Staff - VLM
3mo agoResearch0