Thaddäus Wiedemer
Thaddäus Wiedemer

Research Scientist

I recently joined Google DeepMind Zürich as a Research Scientist and am wrapping up my PhD in the International Max Planck Research School for Intelligent Systems (IMPRS-IS).

My current research investigates how generative video models can improve multi-modal reasoning and visual intelligence.

The underlying theme of my PhD was how to learn robust representations—a topic I epxlored theoratically and empirically in large vision-language, language, and video models. Throughout this time, I was fortunate to work with and be guided by Wieland Brendel, Matthias Bethge, as well as Robert Geirhos and Priyank Jaini during my 2025 internship at Google DeepMind Toronto.

Download CV
Recent Publications
(2026). MentisOculi: Revealing the Limits of Reasoning with Mental Imagery.
(2025). MATH-Beyond: A Benchmark for RL to Expand Beyond the Base Model.
(2025). Video Models Are Zero-Shot Learners and Reasoners.
(2025). VGGSounder: Audio-Visual Evaluations for Foundation Models. ICCV 2025.