Some companies to compare with:
- Stripe Series A was $100M post-money (https://www.crunchbase.com/funding_round/stripe-series-a--a3... Series E was $22.5B post-money (https://www.crunchbase.com/funding_round/stripe-series-e--d0...) — over a 200x return to date
- Slack Series C was $220M (https://blogs.wsj.com/venturecapital/2014/04/25/slack-raises...) and now is filing to go public at $10B (https://www.ccn.com/slack-ipo-heres-how-much-this-silicon-va...) — over 45x return to date
> you don't want to "unduly concentrate power"? How will this work?
Any value in excess of the cap created by OpenAI LP is owned by the Nonprofit, whose mission is to benefit all of humanity. This could be in the form of services (see https://blog.gregbrockman.com/the-openai-mission#the-impact-... for an example) or even making direct distributions to the world.