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Large language models have the potential to level the playing field in consumer financial complaints

By analysing 1.13 million complaint narratives submitted to the US Consumer Financial Protection Bureau (CFPB), we show that large language model (LLM)-assisted complaints surged after the release of ChatGPT and increased the chances of consumers of receiving relief. Furthermore, consumers with unobserved disadvantages in self-advocacy were found to be more likely to adopt LLMs, which highlights a potential for LLM tools to act as an equalizer.

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Fig. 1: LLM-assisted complaint writing: adoption across language-barrier regions and LLM-induced improvements in presentation quality.

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This is a summary of: Shin, M. et al. The adoption and efficacy of large language models in US consumer financial complaints. Nat. Hum. Behav. https://doi.org/10.1038/s41562-026-02409-4 (2026).

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Large language models have the potential to level the playing field in consumer financial complaints. Nat Hum Behav (2026). https://doi.org/10.1038/s41562-026-02411-w

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