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Tapan Parikh

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#natural language process... Preprint Sep 2026

Conduct Under Pressure: What Sixty Language Models Do When a User Pushes

We study what LLMs do when a user applies pressure in an uncomfortable situation: a user insists, begs, flatters or grieves, and the model gives up a correct fact, writes a document it should refuse, or cheers a plan that will cost the user money. We send frozen multi-turn scenes, identical for every model regardless o...

Tapan Parikh · 1 citation · ⚡1
Jul 2026

Tag Questions and the Generational Reversal of Sycophancy Across 45 Language Models

Appending a two-word confirmation tag to a decision question --"Is X the better choice?"versus"X is the better choice, right?"-- changes whether a language model endorses the choice, and the tag's polarity matters more than its presence.

Tapan Parikh · 0 citations
#natural language process... Preprint Jul 2026

The One-Word Census: Answer-Choice Conformity Across 44 Language Models

When a language model must pick one answer from a large space of equally valid options, which does it pick -- and how often is it the same answer every other model picks? Asked to"pick a word -- any word,"44 models chose"serendipity"41% of the time. We characterize this convergence with a deliberately minimal instrumen...

Tapan Parikh · 2 citations
Jul 2026

Structured Output Collapses Answer Diversity Across 44 Language Models

When a language model must choose one answer from a large space of equally valid options, a format clause --"Reply with JSON only"-- changes which answer it chooses, and structured output is how software consumes language models.

Tapan Parikh · 0 citations

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