Bob Leaf

Dr. Robert J. “Bob” Leaf · Nantucket, Massachusetts

At 81, he ended his retirementto help keep AI safe.

Harvard-trained dentist. Four decades building dental insurance. Now, at 82, working to keep AI safe for humanity, starting with children.

See his five efforts ↓ Read the story →
Bob Leaf, smiling, outdoors, in a Keep AI Safe Foundation jacket.
Bob Leaf, November 2025.

Where he is engaged

Five separate efforts

Support the work

Donations encouraged

The nonprofit work welcomes donations: Keep AI Safe's work for children, and the Dignity Accords convening it hosts.

Gifts go to Keep AI Safe, a nonprofit that accepts no funding from AI product manufacturers. It also receives gifts for the Dignity Accords convening.

  • Keep AI Safe Independent nonprofit Donate at keepaisafe.org → Keep AI Safe is a nonprofit. It accepts no funding from AI product manufacturers.
  • The Dignity Accords Proposed interfaith and scientific convening Give through Keep AI Safe → Gifts for the convening are made to Keep AI Safe, the nonprofit hosting it.
  • Who

    A dentist who built an industry

    • Harvard School of Dental Medicine, DMD 1969
    • Cornell: economics and chemistry
    • Founded and led dental benefit companies and networks
    • Designed the U.S. government's dental plan
  • Why

    His grandchildren, and yours

    In spring 2025 he heard some of AI's own builders warn it could go badly wrong.

    “…I could not just sit by and let this happen to humanity.” — Bob

  • Now

    A new full-time job, at 82

    In his words, October 2025:

    “I have a new full time job 12 hours a day 7 days a week, and I have to pay to work there.” — Bob

In person

At the table

  • Bob Leaf beside a humanoid robot on display, with a companion.
    Beside a humanoid robot on display. · December 2025
  • Bob Leaf outdoors with two companions, two of them in Keep AI Safe Foundation jackets.
    Bob and friends in Keep AI Safe jackets. · November 2025
  • Bob Leaf, smiling, seated at an outdoor café table beside a friend.
    Bob, with a friend.
  • Bob Leaf at a restaurant table with two companions, plates of food between them.
    Dinner, the way so much of the work begins.
  • Bob Leaf at dinner with two guests.
    Bob and his guests.
  • Bob Leaf standing behind a long dinner table of guests.
    Bob, standing, with guests at a long table.

Four goals

  1. 01 For children under 13, AI that stays within limits Systems built to stay inside approved limits, and tested before they reach a child.Keep AI Safe · Boundlia
  2. 02 Builders answer for what they build Responsibility, the oldest rule, applied to AI. Insurance and liability can make it hold.The story, chapter VI
  3. 03 Faith and science at one table A short statement he hopes religious leaders and independent scientists will write together.The Dignity Accords
  4. 04 AI for good in medicine Turning the notes doctors already write into structured evidence for research.Medical Discoveries

What's next

  1. Oct 26, 2026 Speaker, Boston Wealth Family Office Conference W Hotel, Boston
  2. Jan 4, 2027 Beacon Harbor Capital's first fund, scheduled to begin A schedule, not a commitment
  3. Feb 4, 2027 The Dignity Accords convening, proposed date Draft; venue to be confirmed
The full timeline →

The story

Nine chapters, from midnight to dawn

  1. I The Warning Spring 2025: the warning, and the end of retirement.
  2. II A Life Spent Pricing Risk Harvard dentist; four decades of dental insurance.
  3. III The Compass Why: his grandchildren, and every child.
  4. IV Children First Keep AI Safe and Boundlia: children first.
  5. V The Harbor How an idea for funding Keep AI Safe became Beacon Harbor Capital.
  6. VI Builders Are Responsible The oldest rule: whoever builds it answers for it.
  7. VII A Table of Equals The Dignity Accords: faith and science, writing together.
  8. VIII Healing and Building Medical Discoveries: AI put to work for patients.
  9. IX Not Think About. Do. At 82: a mind that has grown, and an invitation.
Begin the story →

Are you looking to help?

Bob is looking for people who know children, serve a faith community, or work in science, insurance or law, and for donors who share the mission. He would like to hear from you.

Join the work →