Switzerland Launches Transparent AI Alternative to ChatGPT
Swiss universities unveil Apertus LLM, focusing on research and commercial applications with emphasis on transparency and safety over consumer features.

Key Takeaways
- Switzerland launched Apertus, a national Large Language Model (LLM), on September 2, 2025.
- Apertus is designed by leading Swiss universities, including EPFL.
- The model is comparable in performance to Meta's Llama 3 model from 2024.
- Apertus is fully open-source, releasing its design manual, training recipe, and internal architecture.
By The Numbers
They Said
"We aim to provide a blueprint for how a trustworthy, sovereign and inclusive AI model can be developed."
"One of the most ambitious open-source models to date."