We'd like to invite you to participate in the following shared tasks at PAN 2026 held in conjunction with the CLEF conference in Jena, Germany.
1. Voight-Kampff Generative AI Detection. Given a (potentially obfuscated) text, decide whether it was written by a human or an AI. https://pan.webis.de/clef26/pan26-web/generated-content-analysis.html 2. Text Watermarking. Insert a watermark into a given text. Then, after we have attacked the text, detect the inserted watermark. https://pan.webis.de/clef26/pan26-web/text-watermarking.html 3. Multi-Author Writing Style Analysis. Given a document, determine at which positions the author changes. https://pan.webis.de/clef26/pan26-web/style-change-detection.html 4. Generative Plagiarism Detection. Given a document and a collection of documents, your task is to identify all sources in the collection that the document plagiarizes. https://pan.webis.de/clef26/pan26-web/generated-plagiarism-detection.html 5. Reasoning Trajectory Detection. Detect the source and safety of LLM-generated and human-written reasoning trajectories. https://pan.webis.de/clef26/pan26-web/reasoning-trajectory-detection.html More information: https://pan.webis.de/clef26/pan26-web/index.html Important Dates -------------------------- now Training Data Released April 23, 2026: Registration closes May 07, 2026: Software submission deadline May 28, 2026: Participant paper submission June 30, 2026: Peer review notification July 06, 2026: Camera-ready participant papers submission September 21-24, 2026: CLEF Conference Links -------------------------- PAN: https://pan.webis.de Contact: [email protected] We are looking forward to your submission! The PAN team
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