Kohaku Lab
Virtual Open Source AI Research Lab
A collaborative virtual lab built by AI/ML enthusiasts from around the internet. We create open-source tools, conduct research, and work together to democratize AI technology and make it accessible to everyone.
Featured Projects
Explore our latest open-source contributions to the AI/ML community

KohakuHub
A HuggingFace alternative with advanced model hosting, versioning, and collaboration features. Built with FastAPI, PostgreSQL, and Vue 3.

KohakuBoard
Machine learning experiment tracking and visualization platform. Track metrics, compare runs, and visualize results with powerful analytics.

HDM
Home-trained text-to-image diffusion model. Demonstrating that high-quality AI models can be trained with accessible hardware.
About Kohaku Lab
Kohaku Lab is a virtual lab made by enthusiasts who build tools we actually want to use ourselves.
We all use text-to-image models, so we trained HDM at home. We all used HuggingFace and Weights & Biases but got frustrated with their policy shifts, so we built KohakuHub and KohakuBoard. Simple as that - scratch your own itch.
No grand mission. Just people building things they want to exist, sharing them openly, and having fun in the process. Everything we make is 100% open access.
Virtual First
Global collaboration without geographic boundaries
Open Access
Everything we create is freely accessible to all
Research Driven
Pushing boundaries with innovative techniques
Community Focused
Built by and for the AI/ML community
Meet Our Team
The passionate individuals behind Kohaku Lab

KohakuBlueLeaf
Founder & Lead Developer
Taiwan

narugo1992
Core Member
Git Repository
cybermeow
Researcher
Tokyo
theblackcat
Developer
Taiwan

Tauska (Xuehai Wang)
ML Engineer
Stockholm, Sweden
Latest from Our Blog
Insights, tutorials, and updates from the Kohaku Lab team

Introducing Kohaku Lab
Welcome to our virtual AI/ML research lab. Learn about our mission, projects, and how you can get involved in open-source AI development.

Virtual Collaboration Actually Works
Lessons learned from building a successful virtual AI/ML lab. How we collaborate across time zones, manage projects, and stay productive as a distributed team.

Why Open Access Matters
Our thoughts on making AI technology freely accessible while protecting creators rights. Understanding the difference between open source and open access.
Ready to Get Involved?
Join our community of AI/ML enthusiasts and contribute to open-access projects that are making a difference.