Research

Research News

Papers and technical reports from the Apertus project. See theNews area for general announcements.

Apertus: Democratizing Open and Compliant LLMs for Global Language Environments Main technical report — architecture, training methodology, data pipeline, evaluation.Can Performant LLMs Be Ethical? Quantifying the Impact of Web Crawling Opt-Outs Fan, Sabolčec, Ansaripour, Tarun, Jaggi, Bosselut, Schlag Shows that respecting robots.txt opt-outs causes minimal performance degradation.Positional Fragility in LLMs: How Offset Effects Reshape Our Understanding of Memorization Risks Xu, Bosselut, Schlag Research on memorization patterns and copyright risks in LLMs.