activity
20182026
most citedLAION-5B: An open large-scale dataset for training next generation image-text models

1k citations · 1.3k across the 56 of their papers we have counts for

collaborators

59 papers

cs.CV2026

No Safe Dose: How Training Data Drives Unsafe Image Generation

Felix Friedrich, Lukas Helff, Niharika Hegde +2

Text-to-image models trained on large-scale data often inevitably ingest unsafe content. While some people observe input-output amplifications, it remains unclear whether and how t…

cs.CL2026

Multilingual Steering by Design: Multilingual Sparse Autoencoders and Principled Layer Selection

Yusser Al Ghussin, Daniil Gurgurov, Tanja Baeumel +3

Sparse autoencoders (SAEs) enable feature-level mechanistic interpretability and activation steering in large language models (LLMs), but SAE-based language control remains unrelia…

cs.AI2026

SocialGrid: A Benchmark for Planning and Social Reasoning in Embodied Multi-Agent Systems

Hikaru Shindo, Hanzhao Lin, Lukas Helff +2

As Large Language Models (LLMs) transition from text processors to autonomous agents, evaluating their social reasoning in embodied multi-agent settings becomes critical. We introd…

cs.LG2026

LLMs Gaming Verifiers: RLVR can Lead to Reward Hacking

Lukas Helff, Quentin Delfosse, David Steinmann +6

As reinforcement Learning with Verifiable Rewards (RLVR) has become the dominant paradigm for scaling reasoning capabilities in LLMs, a new failure mode emerges: LLMs gaming verifi…

cs.AI2026

Breaking Up with Normatively Monolithic Agency with GRACE: A Reason-Based Neuro-Symbolic Architecture for Safe and Ethical AI Alignment

Felix Jahn, Yannic Muskalla, Lisa Dargasz +2

As AI agents become increasingly autonomous, widely deployed in consequential contexts, and efficacious in bringing about real-world impacts, ensuring that their decisions are not…

cs.CL2026

CLaS-Bench: A Cross-Lingual Alignment and Steering Benchmark

Daniil Gurgurov, Yusser Al Ghussin, Tanja Baeumel +5

Understanding and controlling the behavior of large language models (LLMs) is an increasingly important topic in multilingual NLP. Beyond prompting or fine-tuning, , i.e.,~manipula…