Apertus

Fully Open Foundation Model for Sovereign AI

Artificial intelligence model · by Swiss AI, Swiss National Supercomputing Centre, École polytechnique fédérale de Lausanne, ETH Zurich · apertus-ai.org

Open Apertus in AirStack

What Apertus’s own pages say

What it says it doesFully Open Foundation Model for Sovereign AI apertus-ai.org
Open sourceYes apertus-ai.org

Each value is a quote AirStack found on the product’s own pages, read 2026-11-05. A missing field means AirStack has not found it on its pages.