Apertus is developed by Swiss AI Initiative.

Apertus specializes in text generation, summarization, translation, question answering.

Apertus

Name: Apertus
Author: Swiss AI Initiative

Apertus is a text AI model developed by Swiss AI Initiative. This full performance model is based on Apertus-70B-2509. The model is licensed under Apache-2.0. Released in 2025-09. Open-data open-weights models, multilingual in >1000 languages, developed at Swiss public universities.

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Transparency Score

35%

Limited transparency

Supply Chain

0/20

Compliance

10/20

Policy

0/25

Technical

25/25

Ethical & Operational

0/10

Openness Assessment

57%Partially Open

8 Open

0 Partial

1 Closed

5 Unknown

Availability

1/5 Open

Documentation

4/6 Open

Access Methods

3/3 Open

Data from EU Open Source AI Index (DOI: 10.5281/zenodo.15386042), licensed under CC-BY 4.0

Capabilities

Text Generation

Summarization

Translation

Question Answering

Vendor Information

Complete information about the vendor/provider of this AI application

Company Name

Swiss AI InitiativeView all products →

Contact Information

Website

swiss-ai.org

EU AI Act Provider Information

Verification Status:

Unverified

Potential Risks

1 considerations identified

Review recommended before use

These considerations are automatically identified based on publicly available information about the vendor and AI catalog data. Actual risks may vary based on your specific use case and implementation.

Compliance & Risk

Get insights into risk by running assessments on this AI application.

Data Categories

Types of data commonly processed by this application

Text Data

User Content

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Added: January 26, 2026

Updated: January 26, 2026