Personal AI assistants newsletters

NewsletterFIT tracks 6 newsletters that cover Personal AI assistants as a primary topic, all with posts in the last 90 days. By publicly shown subscriber count, the largest are One Useful Thing (491K), mail.bigdeskenergy.com (250K) and Health API Guy (12K). Brands detected sponsoring these newsletters recently include Blog2Video.

Updated Oct 31, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    One Useful Thing491K subscribers

    SubstackMonthly or less · last post 30 days ago

    Likely audience: AI researchers

  2. 2
    mail.bigdeskenergy.com250K subscribers

    beehiivWeekly · last post 25 days ago

    Likely audience: Startup founders

  3. 3
    Health API Guy12K subscribers

    SubstackEvery two weeks · last post 22 days ago

    Likely audience: Healthcare IT professionals

  4. 4
    Builder Hustle10K subscribers

    SubstackEvery two weeks · last post 23 days ago

    Likely audience: Startup founders

    Sponsors detected: Blog2Video

  5. 5
    AI with Amitay6K subscribers

    SubstackMonthly or less · last post 42 days ago

    Likely audience: Power Users

  6. 6
    Monday Motivational Minute—

    beehiivWeekly · last post 19 days ago

    Likely audience: Nonprofit executives

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