Hackathons · Zurich · October 2025

CertusAI

Best usage of Apertus. Swiss AI Weeks.

With Luca Saur, Ali Can Acar won Best Usage of Apertus for CertusAI, an open search and summary of Swiss law on Switzerland’s sovereign model. Prize: CHF 10,000.

Built with Luca Saur.

Ali Can Acar and Luca Saur working side by side at a laptop during the Swiss AI Weeks hackathon in Zurich. — Ali Can Acar and Luca Saur, Zurich.

The Swiss AI Weeks Zurich hackathon hall, with a welcome screen, shipping containers, and builders at long tables. — Swiss {ai} Weeks, the Zurich hackathon floor.

Apertus is the open, multilingual model from EPFL, ETH Zürich, and CSCS.
CertusAI searches and summarizes Swiss law so a person can read it in their own language, in the open.
The award was given at the Zurich hackathon during Swiss AI Weeks.

Apertus
EPFL
ETH Zürich
Swiss AI Weeks

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