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Sam Altman: The Leading Causes of Co-Founder Conflict (And How to Prevent Them)

By Sam Altman · Investing · 1 min read

Altman has watched hundreds of founding teams blow up. The causes are almost always the same.

Key Points

Equity split disagreements are the number one killer
Misaligned work expectations — one founder working 80 hours, the other 40
Role ambiguity: who decides what? If it is unclear, fights are inevitable.

Almost every co-founder blowup comes from a conversation that should have happened on day one but did not.

The Conversations That Never Happened

Most co-founder conflicts come from things left unsaid.

How much equity does each person get? Who makes the final call? What if one person wants to quit?

If you do not answer these on day one, you will answer them with lawyers.

Equity

Altman says equity disputes are the number one killer of founding teams.

If one founder feels they got a raw deal, resentment builds slowly. Then explodes.

Split equity early. Make it fair. Put it in writing. Do not revisit it.

Almost every blowup comes from a conversation that never happened on day one.

Work Mismatch

One founder works 80 hours. The other works 40. Both think they are working hard.

This asymmetry creates poison. The hard worker resents. The other feels attacked.

Set expectations early. Define what all-in means for both of you.