Had my COO make a video for you on how to make custom reports in Google Analytics to track ChatGPT and LLM traffic.

Here is the expression used in the video:
^*.openai.*|.*copilot.*|.*chatgpt.*|.*claude*.|.*gemini.*|.*gpt.*|.*neeva.*|.*writesonic.*|.*nimble.*|.*perplexity.*|.*google.*bard.*|.*bard.*google.*|.*bard.*|.*edgeservices.*|.*bnngpt.*|.*gemini.*google.*$