Microsoft ↔ OpenAI
Microsoft-OpenAI restructured partnership (OpenAI PBC, Microsoft ~27%/$135B, $250B Azure commitment)
Strategic investmentRestructuredannounced 2025-10-28Primary source
Recapitalization of OpenAI into a PBC controlled by the OpenAI Foundation. Microsoft IP rights extend to 2032 (including post-AGI models with safety guardrails), Azure API exclusivity continues until AGI, OpenAI commits $250B in incremental Azure purchases, Microsoft loses right-of-first-refusal on future compute.
Primary source
Microsoft 8-K Exhibit 99.2: The next chapter of the Microsoft-OpenAI partnership
Following the recapitalization, Microsoft holds an investment in OpenAI Group PBC valued at approximately $135 billion, representing roughly 27 percent on an as-converted diluted basis, inclusive of all owners.Read at source →
Patterns observed
- Compute-Backed Strategic Investment2 kill-list moves observed
- Hyperscaler-Exclusive-Then-Multi-Home3 kill-list moves observed
Event timeline
No structural-change events recorded yet. When the partnership restructures, expands, has terms change, or otherwise shifts shape, each event will be appended here with its primary source.
vv0.1.0reviewed 2026-06-23 by Marcus Harjaniptr_microsoft_openai_restructured_2025_10