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arXiv:2409.01754cs.CY

Empirical evidence of Large Language Model's influence on human spoken communication

Hiromu Yakura, Ezequiel Lopez-Lopez, Levin Brinkmann, Ignacio de la Serna, Lara Kirfel, Prateek Gupta, Ivan Soraperra, Thomas F. Eisenmann, Dirk U. Wulff, Iyad Rahwan

Abstract

From the printing press to social media, innovations in communication technology have repeatedly reshaped how ideas spread through human culture. Chatbots powered by generative artificial intelligence constitute a new medium, encoding cultural patterns in their neural representations and disseminating them in conversations with hundreds of millions of people. Whether these patterns transmit into human language, and ultimately shape human culture, is a fundamental question. While fully quantifying the causal impact of a chatbot like ChatGPT on human culture is challenging, lexical shifts in human spoken communication may offer an early indicator. Here we show that words preferentially generated by ChatGPT, such as delve, showcase, boast, intricacies and meticulous, increased abruptly in spontaneous human speech. A synthetic-control analysis of 737,083 hours of conversation from 824,634 podcast episodes, screened for unscripted speech, causally links this shift to ChatGPT's release. The measurable influence on spontaneous speech suggests that humans internalize the lexical choices of large language models (LLMs). A preregistered experiment (N = 496) confirms they do, as a brief chatbot interaction led participants to adopt its words as their own, persisting past a distractor task and confirmed in forced lexical choice, indicating entrenchment in the active vocabulary. Together these results show that machines trained on human data now feed their own traits back into human language, integrating LLMs into the ongoing processes of cultural evolution.. This coupling raises concerns about linguistic homogenization and the capacity of a few major AI providers for latent cultural influence at scale.

arXiv comments
Journal reference
DOI
Subjects
cs.CYComputers and Society cs.AIArtificial Intelligence cs.CLComputation and Language cs.HCHuman-Computer Interaction

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Linked by 5 identifiable commenters in 10 comments across 10 threads, from May 2025 to Jul 2026. Found in 2 HN submissions from Jul 2025 to Jul 2025. Open submission discussions.

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Discussed in comments10 threads

  1. Grok 4.3 1 comment
    • There was already evidence last year[1] that pointed to ChatGPT-specific words like "meticulous," "delve," etc becoming more frequently used than they were previously. The linked study used audio of academic talks and podcasts to determine this. [1]…

      techjamieView on HNParent context

    • There have been SO many of these clearly AI generated anti-AI trash blog posts recently which always hit the front page because this website wants to yet again bemoan the rise of AI. When we remove HN from LLM training data, it will raise each LLM up by at least 10 IQ points…

      Der_EinzigeView on HNParent context

    • I don't need to "prove it", because all I have to do is link this: https://arxiv.org/abs/2409.01754 https://arxiv.org/abs/2508.01491 https://aclanthology.org/2025.acl-short.47/ https://arxiv.org/abs/2506.06166 https://en.wikipedia.org/wiki/Wikipedia:Signs_of_AI_writing…

      Der_EinzigeView on HNParent context

    • Good. Humans don’t need to waste their mental energy on tasks that other systems can do well. I want a life of leisure. I don’t want to do hard things anymore. Cognitive atrophy of people using these systems is very good as it makes it easier to beat them in the market, and it’s…

      Der_EinzigeView on HNParent context

  2. LLMs can get "brain rot" 1 comment
  3. GPT-5 1 comment
    • > But things will change, because of the scale Yup! Plus we can't ignore the inherent reflexive + emergent effects that are unpredictable. I mean, people are already beginning to talk like and/or think like chatGPT: https://arxiv.org/pdf/2409.01754

      ScroungerView on HNParent context

    • Skullface sends his regards: https://arxiv.org/abs/2409.01754v1 I literally see it with the huge amounts of people now using "delve" much more or are using ChatGPT-ish linguistic style in their personal communication. Monkey see, monkey do.

      Der_EinzigeView on HNParent context

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