Simon Willison’s Weblog

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5th April 2026

From anonymized U.S. ChatGPT data, we are seeing:

  • ~2M weekly messages on health insurance
  • ~600K weekly messages [classified as healthcare] from people living in “hospital deserts” (30 min drive to nearest hospital)
  • 7 out of 10 msgs happen outside clinic hours

Chengpeng Mou, Head of Business Finance, OpenAI