Introduction
On September 11, 2025, OpenAI and Microsoft said they signed a non-binding memorandum of understanding (MOU) for the next phase of their partnership. In a separate update the same day, OpenAI outlined a governance shift in which its existing nonprofit would control a Public Benefit Corporation (PBC) and hold an equity stake exceeding $100 billion. As of September 13, 2025, 3:47 PM ET, both parties say they are working toward a definitive agreement and reiterate a focus on AI safety.
Why It Matters
- Clarifies the OpenAI–Microsoft relationship while negotiations continue under an MOU.
- Signals a rare structure: a controlling nonprofit with an equity stake exceeding $100B in a PBC.
- Launches a $50M “People-First AI Fund” for nonprofits, indicating near-term community investment.
Details / Specs / Numbers
- OpenAI Microsoft MOU: Non-binding; defines intent for the “next phase” of partnership while final terms are negotiated.
- Governance model: The OpenAI nonprofit retains authority and controls the PBC.
- Equity stake: The nonprofit’s stake in the PBC is planned to exceed $100B.
- Safety framing: OpenAI states PBC charter and governance will tie safety decisions to its mission (benefit all of humanity).
- Regulatory posture: OpenAI says it is working with the California and Delaware Attorneys General on the approach.
- Grants: First wave of a $50M fund for U.S. nonprofits in AI literacy, community innovation, and economic opportunity (applications open; deadline listed in program page).
Timeline & Official Statements
- September 11, 2025 — Joint OpenAI–Microsoft post announces a non-binding MOU for the next partnership phase.
- September 11, 2025 — OpenAI details the nonprofit + PBC structure and expects a >$100B equity stake for the nonprofit; affirms safety-first charter and ongoing engagement with CA/DE Attorneys General.
- September 8, 2025 — OpenAI opens applications for the $50M People-First AI Fund to support U.S. nonprofits.
Market/Industry Impact
The MOU reduces uncertainty after months of speculation and preserves Microsoft’s strategic alignment with OpenAI while allowing OpenAI to continue a hybrid nonprofit/PBC model. A nonprofit with a >$100B equity stake would be among the largest philanthropic entities by resources, potentially reshaping AI governance and grantmaking. For customers and developers, little changes immediately, but a definitive agreement and recapitalization could influence compute sourcing, product roadmaps, and pricing over time. Watch for regulatory commentary and investor reactions if OpenAI pursues additional financing under the PBC.
What to Watch Next
- Final definitive agreement terms and any exclusivity or cloud-usage changes.
- Further details on the PBC charter, board composition, and safety escalation pathways.
- Outcomes of CA/DE AG engagements and any federal attention.
- Scope and awardees of the $50M fund; potential expansion beyond the U.S.
TL;DR
- OpenAI and Microsoft signed a non-binding MOU for the next phase of their partnership.
- OpenAI’s nonprofit would control a PBC with an equity stake >$100B.
- OpenAI launched a $50M nonprofit grant program focused on AI literacy, community innovation, and economic opportunity.
FAQ
Q: What is an MOU and does it change current services?
A: An MOU is a non-binding document of intent; existing services continue while the parties negotiate a definitive contract.
Q: Who will control OpenAI after the change?
A: The OpenAI nonprofit will control the PBC and hold an equity stake exceeding $100B, according to the company.
Q: What does the $50M fund support?
A: U.S. nonprofits working on AI literacy, community innovation, and economic opportunity; applications are open with criteria detailed on OpenAI’s site.
External Sources
- OpenAI — A joint statement from OpenAI and Microsoft — https://openai.com/index/joint-statement-from-openai-and-microsoft/
- OpenAI — Statement on OpenAI’s Nonprofit and PBC — https://openai.com/index/statement-on-openai-nonprofit-and-pbc/
- The Official Microsoft Blog — A joint statement from Microsoft and OpenAI — https://blogs.microsoft.com/blog/2025/09/11/a-joint-statement-from-microsoft-and-openai/
- OpenAI — A People-First AI Fund: $50M to support nonprofits — https://openai.com/index/people-first-ai-fund/









