A year after its launch, it is time to take stock of Switzerland’s AI model Apertus.

Keystone / Gaetan Bally

One year after its launch, Switzerland’s fully open AI model has passed four million downloads and found real-world uses. Now on version 1.5, Apertus is closing the gap with its rivals, but weaknesses on key tasks still make it difficult for the Swiss model to compete in the fast-moving AI race.

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September 2, 2026 - 09:00