Fully Open Foundation Model for Sovereign AI

A apertvs.ai ↗

▲ 532 points • 183 comments • by T-A • 3d ago • HN discussion ↗

Pangram verdict · v3.3

We believe that this document is fully human-written

3 %

AI likelihood · overall

Human

100% human-written 0% AI-generated

SEGMENTS · HUMAN 1 of 1

SEGMENTS · AI 0 of 1

WORD COUNT 116

PEAK AI % 3% · §1

Analyzed

Jun 21

backend: pangram/v3.3

Segments scanned

1 windows

avg 116 words each

Distribution

100 / 0%

human / AI fraction

Verdict

Human

Pangram v3.3

Article text · 116 words · 1 segments analyzed

Human AI-generated

§1 Human · 3%

Developed by the Swiss AI Initiative as a collaborative effort between EPFL, ETH Zurich, and CSCS. Open weights, open data, open science. Fully OpenTraining data, code, weights, methods, and alignment principles — all documented and reproducible. Apertus is to AI as Open is to Source.Compliant at ScaleBuilt to meet EU AI Act requirements: the model respects opt-outs, removes PII, prevents memorization. A global foundation to build on.Run for PerformanceCompetitive with top open models at an equivalent scale of 8B and 70B parameters. Multilingual from day one — trained on 1000+ languages.Swisscom is a Strategic Partner of the Swiss AI Initiative.Stay UpdatedOur newsletter will keep you on top of Apertus releases, our team's research, and community news.