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20232026
most citedOpen Problems and Fundamental Limitations of Reinforcement Learning from Human Feedback

95 citations · 118 across the 21 of their papers we have counts for

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8 papers · 1 filter

cs.LG2026

Running the Gauntlet: Hard Agentic Tasks

Mykola Vysotskyi, Runqi Lin, Grzegorz Biziel +21

As agentic systems continue to evolve and are widely deployed in real-world scenarios, there is a growing demand to faithfully evaluate their capabilities. However, current benchma…

cs.LG2026

Boundary Point Jailbreaking of Black-Box LLMs

Xander Davies, Giorgi Giglemiani, Edmund Lau +3

Frontier LLMs are safeguarded against attempts to extract harmful information via adversarial prompts known as "jailbreaks". Recently, defenders have developed classifier-based sys…

cs.LG2025★ 6 cited

Poisoning Attacks on LLMs Require a Near-constant Number of Poison Samples

Alexandra Souly, Javier Rando, Ed Chapman +10

Poisoning attacks can compromise the safety of large language models (LLMs) by injecting malicious documents into their training data. Existing work has studied pretraining poisoni…

cs.LG2025

Deep Ignorance: Filtering Pretraining Data Builds Tamper-Resistant Safeguards into Open-Weight LLMs

Kyle O'Brien, Stephen Casper, Quentin Anthony +7

Open-weight AI systems offer unique benefits, including enhanced transparency, open research, and decentralized access. However, they are vulnerable to tampering attacks which can…

cs.LG2025

Existing Large Language Model Unlearning Evaluations Are Inconclusive

Zhili Feng, Yixuan Even Xu, Alexander Robey +5

Machine unlearning aims to remove sensitive or undesired data from large language models. However, recent studies suggest that unlearning is often shallow, claiming that removed kn…

cs.LG2025

An Example Safety Case for Safeguards Against Misuse

Joshua Clymer, Jonah Weinbaum, Robert Kirk +3

Existing evaluations of AI misuse safeguards provide a patchwork of evidence that is often difficult to connect to real-world decisions. To bridge this gap, we describe an end-to-e…

cs.LG2025

Fundamental Limitations in Pointwise Defences of LLM Finetuning APIs

Xander Davies, Eric Winsor, Alexandra Souly +4

LLM developers have imposed technical interventions to prevent fine-tuning misuse attacks, attacks where adversaries evade safeguards by fine-tuning the model using a public API. P…

cs.LG2024★ 5 cited

AgentHarm: A Benchmark for Measuring Harmfulness of LLM Agents

Maksym Andriushchenko, Alexandra Souly, Mateusz Dziemian +11

The robustness of LLMs to jailbreak attacks, where users design prompts to circumvent safety measures and misuse model capabilities, has been studied primarily for LLMs acting as s…