AI that belongs to you,
democratically governed,
for the benefit of society
GC.OS is the German Center for Open Source AI. We build open source AI software and a sovereign tech stack that is democratically run by its users.
Organisations
We help organisations adopt Open Source AI through consulting, implementation support, and strategic guidance.
- •AI adoption
- •Open source review
- •Consultancy
- •R&D Projects
Individuals
We support individuals in building practical, hands-on skills in open-source AI through targeted education, personal guidance, and exchange within an active community.
- •Mentoring
- •Courses
- •Upskilling
- •Events
OS Developers
We create conditions that actively support open-source developers in their technical work and professional development.
- •OS Project umbrella
- •OS Developers
- •OS Governance
- •Career Support
Our Impact
We develop open source AI projects that are used worldwide and reach an ever-growing community.
0
Projects
0
Contributors
0
Core Developer
0
Monthly Downloads
0
Total Downloads
LiveHow We Work
Democratic Governance
Decisions are made collectively by our community
Open Source First
We prioritize Open Source solutions and transparency
Community-Driven
Our work is run by and for the community
Social Impact
Everything we do serves the common good
Featured Projects
sktime
sktime is a Python library that makes it easy to analyze and forecast time series data using a scikit-learn-like interface.
Feature-engine
Feature-engine is an open-source Python library for feature engineering that works natively with pandas DataFrames and integrates seamlessly with scikit-learn pipelines.
Hyperactive
Hyperactive is an open-source library for optimization and hyperparameter tuning with a unified API.
pgmpy
pgmpy is an open-source Python library for causal and probabilistic inference using Bayesian Networks and DAGs.
Prophetverse
Prophetverse is an open-source library for Bayesian time series forecasting and Marketing Mix Modeling.
PyTorch Forecasting
PyTorch Forecasting is a high-level library for neural network–based time series forecasting.
pyGAM
pyGAM is an open-source Python library for building Generalized Additive Models.
pykalman
pykalman is an open-source Python library for Kalman filtering, smoothing, and state-space models.
skbase
skbase is an open-source framework for building scikit-learn– and sktime-style parametric objects.
skforecast
skforecast is an open-source Python library for machine learning–based time series forecasting.
skpro
skpro is an open-source Python library for supervised probabilistic prediction.
PyPortfolioOpt
PyPortfolioOpt is an open-source Python library for portfolio optimization, combining classical approaches such as the efficient frontier and Black–Litterman with modern risk models and optimization techniques.
Frequently Asked Questions
What is Open Source?
Open Source means that a software's source code is publicly accessible and can be viewed, used, modified, and distributed by anyone. Unlike proprietary software controlled by individual companies, Open Source belongs to the community. This creates transparency, fosters innovation through collaboration, and ensures that technology is not monopolized in the hands of a few. For AI systems, this is particularly important: Open Source AI enables everyone to understand how decisions are made and adapt the technology to their own needs.
What does "democratically governed" Open Source AI mean?
Democratically governed Open Source AI goes beyond freely accessible code. It means that decisions about the development, direction, and use of AI projects are made transparently and with active community participation. Instead of individual companies or institutions setting the direction, all stakeholders – developers, users, and organizations – have a voice. At GC.OS, we promote governance structures that enable this democratic participation. This ensures that AI technology is developed in the interest of society and remains sustainable, fair, and trustworthy in the long term.
How does GC.OS support Open Source developers?
We create the framework conditions so developers can focus on what they do best: developing great software. GC.OS provides the legal and organizational framework for Open Source AI projects – from license consulting to governance structures to administrative support. Through our fellowships, developers receive financial support and can work full-time on their projects. Additionally, we offer career development, networking with the community, and access to resources. This allows developers to put their energy into innovation while we handle the organizational framework.
How does GC.OS support companies and organizations?
We accompany companies and organizations in successfully implementing Open Source AI systems. Our consulting services include analyzing your specific requirements, identifying suitable Open Source solutions, and developing customized implementation strategies. We help you choose the right tools, overcome technical hurdles, and empower your teams. You benefit from our deep expertise in the Open Source community and our network of leading AI projects. Our goal: you use AI technology effectively, cost-efficiently, and independently of individual providers.
How does GC.OS support individual users and learners?
We make Open Source AI accessible to everyone – regardless of prior knowledge. Through our mentoring programs, you are personally guided and supported by experienced experts. Our educational content, from beginner courses to advanced workshops, teaches you the practical skills you need to work with Open Source AI. Additionally, we offer regular events where you can network with the community and learn from others. Whether you want to advance your career, start your own project, or simply understand how AI works – we support you on your journey.