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Sanmi Koyejo

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Preprint Aug 2026

CLEAR: Continuous Latent Adapter Routing for Utility-Preserving LLM Safety Alignment

Improving the safety of large language models (LLMs) often comes at the expense of utility, as globally applied safety tuning may affect model responses to both harmful and benign inputs. We propose \textbf{C}ontinuous \textbf{L}at\textbf{E}nt \textbf{A}dapter \textbf{R}outing (CLEAR), a conditional safety adaptation f...

Chengxiao Wang, Enyi Jiang, Xiaojing Liao et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Agent Evaluation Reliability: More Tasks Won't (Always) Fix An Agent Leaderboard

Agent evaluations are increasingly used to compare LLMs and inform deployment decisions, yet ranks can reflect not only the model but also the effects of the evaluation conditions such as the scaffolds or tasks. This makes reliability claim-dependent: an evaluation that reliably ranks deployed systems may not reliably...

Michael Hardy, Ruhana Azam, Anka Reuel et al. · 0 citations
#machine learning Preprint Sep 2026

How Strong Is the Evidence for the Artificial Hivemind? Reevaluating Evidence for the Open-Ended Homogeneity of Language Models

The paper concludes that inference-time interventions are inadequate for combating the Artificial Hivemind, and shows that more generalizable solutions are needed at the model training level, and that an inference-time intervention (prompting) reliably raises measured response diversity.

Rylan Schaeffer, Brando Miranda, Joshua Kazdan et al. · 0 citations
#machine learning Preprint Feb 2026

Gradient-Stable Attention Heads Signal LLM Correctness

This work introduces HeadEntropy, a method that predicts answer correctness by measuring how susceptible each attention head's pattern is to modification under further gradient updates, and evaluates broadly across 5 instruction-tuned LLMs and 5 datasets spanning general knowledge, multi-hop reasoning, mathematical rea...

S. Ostmeier, Brian Axelrod, M. Varma et al. · 5 citations
#artificial intelligence Preprint Sep 2026

Verbalizing Subliminal Learning Effects Using Text Optimization

This work uses text optimization to detect subliminal learning effects and describes them as legible prompts and presents SALVE (Search-Aided Latent Verbalization) as a method to proactively detect subliminal learning effects.

Nathan Hu, Sanmi Koyejo, Christopher Potts · 1 citation
Preprint Sep 2026

What AI Benchmarks Actually Measure: Adapting Convergent and Discriminant Validity to Interrogate Fifty-Six AI Benchmarks

This work adapt convergent and discriminant validity from the social sciences into an approach for interrogating AI benchmarks, applying it to 56 capability and safety benchmarks across 53 models and asking analogous questions at the item level using item response theory (IRT) models.

Meera Desai, Sang T. Truong, Hanna Wallach et al. · 0 citations
#artificial intelligence Preprint Sep 2026

API Benchmark Scores Do Not Reliably Transfer to Chatbot Interfaces

This work audits ChatGPT, Claude, and Gemini across seven systems and nine benchmarks spanning general capability, social bias, and sycophancy, finding systematic API--interface differences in both accuracy and consistency.

Jennifer Wang, Joachim Baumann, Daniel E. Ho et al. · 0 citations
Preprint Aug 2026

Positive-Unlabeled Preference Optimization For Chest X-ray Report Generation

Vision-Language Models (VLMs) for radiology report generation are typically trained on retrospective clinical reports, which suffer from omission noise: clinically present findings are left unreported due to the omission of subtle findings. For example, prior studies show that cardiomegaly may be omitted from ICU chest...

Y. Kobayashi, P. Ramesh, Muhammad Ahmed Chaudhry et al. · 0 citations
#natural language process... Preprint Sep 2026

A Dataset for Modeling Iterative Problem-Solving

It is found that the model's coding proficiency is inversely related to predictive performance in this setting, with the LLM better understood as a generative solver conditioned on context rather than a faithful predictor of solver behavior.

Fagun Patel, Sang T. Truong, Duc Q. Nguyen et al. · 0 citations
Jul 2026

Underwriting the Agent Economy: The Blueprint for an AI Insurance Stack

This report argues that affirmative AI coverage with limits in the billions is achievable by 2030, but only with industry-wide coordination, and lays out an eight-component AI insurance stack spanning incident data collection, catastrophe modeling, standards, contract design, risk selection, pricing, monitoring, and cl...

Cristian Trout, Sanmi Koyejo, S. Romanosky et al. · 0 citations

Public AI Benchmarks Are Broken, But Are Private Benchmarks the Answer?

This work argues for a hybrid public-private approach: keeping the benchmark content private to maintain integrity while making the benchmark design public to build trust, which offers a path toward trustworthy measurement of ever-growing data-intensive AI systems.

Sang T. Truong, S. Wang, Angelina Wang et al. · 0 citations
Preprint Aug 2026

A Few Pages of Markdown: Committed AI Configuration and Lower Quality Cost after Coding-Agent Adoption

Coding agents increase development velocity but also technical debt. Prior work reports only average effects across adopters, hiding wide differences between teams. We introduce RAMP (Repository AI Maturity Profile), a four-level cumulative maturity model grounded in version-controlled artifacts that teams commit to co...

Yegor Denisov-Blanch, Shyam Agarwal, Pavel Azaletskiy et al. · 0 citations

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