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cs.AI2026

Functional Welfare for AI Safety

Rikhil Jhaveri, Jamie Johnson, Punya Syon Pandey +1

AI welfare is generally treated purely as an ethical issue rather than also as a safety issue. We argue this is a mistake. Whatever their moral status, models exhibit welfare-like…

cs.AI2026

Character Training for Risk-Averse Agents

Arav Dhoot, Punya Syon Pandey, Jamie Johnson +3

Risk aversion in resources could prevent misaligned AI agents from causing catastrophic harm. Misaligned but risk-averse agents would tend to favor safer strategies like making dea…

cs.AI2026

Measuring Activation Control in Large Language Models

Marek Mateusz Kowalski, Joshua Fonseca Rivera, Uzay Macar +1

Safe deployment of increasingly capable models will likely come to rely on latent-space monitoring as a complement to behavioral evaluations, especially when evaluation-aware model…

cs.AI2026

Can AI agents conduct open-ended AI research? Early evidence from two case studies

Peter Kirgis, Sayash Kapoor, Andrew Schwartz +21

Forecasts of explosive AI progress hinge on AI agents automating AI research. But evidence on whether agents can carry out open-ended AI research is thin. Current evaluations eithe…

cs.AI2026

Item Response Theory for AI Safety

Joshua Fonseca Rivera, Neil Shah, David Demitri Africa +1

Language models differ in how safely they behave and these differences are measured by safety benchmarks. But aggregated benchmark scores are hard to trust and interpret, because b…

cs.AI2026

Persona Cartography: Charting Language Model Personality Traits in Weight Space

Luke Baines, Anton Gonzalvez Hawthorne, Mariia Koroliuk +4

Large language models exhibit recurring behavioural patterns -- personas -- that shape generalisation and safety, but we lack reliable tools for decomposing, measuring, and control…

cs.AI2026

"Did you lie?" Evaluating Lie Detectors across Model Scale and Belief-Verified Model Organisms

Alan Cooney, David Africa, Geoffrey Irving

Robust lie detectors for language models could enable powerful techniques for auditing, monitoring, and post-hoc investigation of model behaviour, but evaluating them requires test…

cs.AI2026

Prefill Awareness in Large Language Models

Andy Wang, Parv Mahajan, David Demitri Africa +3

Safety-relevant studies of language models, including alignment and jailbreaking evaluations and AI control protocols, often rely on prefilling model outputs. If AI models can reco…

cs.AI2026

A Decision-Theoretic Formalisation of Steganography With Applications to LLM Monitoring

Usman Anwar, Julianna Piskorz, David D. Baek +6

Large language models are beginning to show steganographic capabilities. Such capabilities could allow misaligned models to evade oversight mechanisms. Yet principled methods to de…

cs.AI2025

Does Self-Evaluation Enable Wireheading in Language Models?

David Demitri Africa, Hans Ethan Ting

Self-evaluation is increasingly central to language model training, underpinning techniques from Constitutional AI to self-refinement. We investigate whether coupling self-evaluati…