Apertus (LLM)

Swiss Large language model
Apertus
Developers
Initial releaseSeptember 2, 2025; 4 months ago (2025-09-02)
LicenseApache 2.0
Websitewww.swiss-ai.org/apertus

Apertus is a Swiss public large language model, developed by the Swiss National AI Initiative (a collaboration between ETH Zurich, the Swiss National Supercomputing Centre, and the École Polytechnique Fédérale de Lausanne).[1][2] It was released on September 2, 2025.[2]

Apertus was trained on over 1800 languages, and comes in 8 billion or 70 billion parameter versions.[3] The model was developed aiming to adhere to European copyright law, and is one of the first examples of a sovereign, public AI in the vein of AI nationalism.[3][4] It is also the first large model to comply with the European Union's Artificial Intelligence Act.[5] It was released under an Apache 2.0 license.[6]

See also

References

  1. ^ "Switzerland's unique, fully open-source LLM 'Apertus' is released, emphasizing learning, transparency, and digital sovereignty with 15 trillion tokens across over 1,000 languages". GIGAZINE. September 4, 2025. Retrieved December 2, 2025.
  2. ^ a b "Apertus: a fully open, transparent, multilingual language model". ETH Zurich. September 3, 2025. Retrieved December 2, 2025.
  3. ^ a b Welle, Elissa (September 3, 2025). "Switzerland releases an open-weight AI model". The Verge. Retrieved December 2, 2025.
  4. ^ "Apertus: The Swiss open-source AI language model – DW – 11/28/2025". dw.com. November 28, 2025. Retrieved December 2, 2025.
  5. ^ Kirchner, Malte (September 2, 2025). "Apertus: Switzerland presents first open and multilingual AI model". heise online. Retrieved December 2, 2025.
  6. ^ Huber, Sepp (September 2, 2025). "Apertus: A fully open, transparent, multilingual language model". Swisscom. Retrieved December 2, 2025.
  • Official website
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