I Trained an LLM on My WhatsApp Chats to Impersonate Me [P]

I recently had an idea: what if I fine-tuned a large language model (LLaMA-3-8B) using years of my WhatsApp chat history to see if it could impersonate the way I write messages?

First, I downloaded my chat history. WhatsApp has a feature that lets you export chat history in plain text (.txt format). After downloading the data, I did some light pre-processing (like removing extremely long messages) but kept it mostly raw to retain authenticity. I formatted the messages using …

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