Christian Gumbsch

@cgumbsch.bsky.social

Postdoc @ University of Amsterdam | world models and sensorimotor abstractions for RL and cognitive modeling |👾🤖🧠 https://cgumbsch.github.io

Super excited to share the last paper of my PhD: "Hallucination in World Models is Predictable and Preventable" ✨ We train a 350M-parameter generative world model on a large dataset spanning 210 tasks and show that we can predict *when* hallucination will happen and use that info to fix it! 🧵1/n

Introducing DINOv3 🦕🦕🦕 A SotA-enabling vision foundation model, trained with pure self-supervised learning (SSL) at scale. High quality dense features, combining unprecedented semantic and geometric scene understanding. Three reasons why this matters👇

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🚀 Launch day! The NeurIPS 2025 PokéAgent Challenge is live. @neuripsconf.bsky.social Two tracks: ① Showdown Battling – imperfect-info, turn-based strategy ② Pokemon Emerald Speedrunning – long horizon RPG planning 5 M labeled replays • starter kit • baselines. Bring your LLM, RL, or hybrid agent!

Banner reading “PokéAgent Challenge @ NeurIPS 2025” with two panels: Track 1 – Competitive Pokémon Battle Bots, Track 2 – Long-Horizon RPG Gameplay. Call-to-action: “Create video-game AI! Win prizes! Live now at pokeagent.github.io.”