How Brian Hartzer uses AI to get free advice from a top investment banker

When former Westpac boss Brian Hartzer wants advice about a transaction, he asks a chatbot to tell him what Barrenjoey’s co-executive would say.

Group executive of Quantium Health, Brian Hartzer says AI has profoundly changed his life. Jessica Hromas

Hannah TattersallWork and careers reporter

Updated May 15, 2025 – 11.02am, first published at 2.00am

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Former Westpac boss Brian Hartzer is group executive of Quantium Health, a joint venture between data science and AI provider Quantium and South African care provider Discovery Health. He is also chair of lending fintech Beforepay, and chair of the Australian Museum.

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Hannah TattersallWork and careers reporterHannah Tattersall is a work and careers reporter for The Australian Financial Review and writes about executive education.