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20242026
most citedDetecting Mode Collapse in Language Models via Narration

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cs.CL2026

Language Models are Lazy Poets: Creative Mode Collapse at Scale

Jacob A. Matthews, Sil Hamilton

While aligned large language models (LLMs) can successfully complete many creative tasks, their outputs tend to be highly self-similar. Though solutions to this problem of "mode co…

cs.AI2026

InvestigationWorlds: An Agentic Environment for Legal Investigation

Albert Yu Sun, Andrew Benard, Sil Hamilton +8

We introduce InvestigationWorlds, an agentic environment for legal investigation. We build on an underused artifact of U.S. civil litigation: the summary judgment motion. This moti…

cs.AI2026

CorporateBench: Large-Scale Q&A Benchmarking with Temporal Knowledge Bases

Sil Hamilton, Albert Yu Sun, Oscar J. Romero +4

LLMs are increasingly able to answer complex questions about enterprise-scale document collections. But evaluation is hard: companies don't want to share internal communications, a…

cs.CL2026

The Plot Thins: Uniformity and Linearity in Literary Summaries

Rebecca M. M. Hicke, Sil Hamilton, David Mimno +1

Works of literature are complicated; they balance plot, suspense, surprise, and artistic expression. Summaries of literature prioritize plot, and therefore may deviate from their s…

cs.CL2026

Elias in the Lighthouse, Again? Diagnosing Low Diversity in LLM Stories

Sil Hamilton, David Mimno

LLM-generated stories are a popular use case, but they show very low variability. We sample 20,000 total stories from four current models using five prompts. We find that 11 words…

cs.CL2026

Attention Flows: Tracing LLM Conceptual Engagement via Story Summaries

Rebecca M. M. Hicke, Sil Hamilton, David Mimno +1

Although LLM context lengths have grown, there is evidence that their ability to integrate information across long-form texts has not kept pace. We evaluate one such understanding…