The September 11, 2025 announcement that OpenAI and Microsoft had reached preliminary terms was a non-binding memorandum of understanding, not a completed contract. The companies later signed a definitive agreement in October 2025 and amended it on April 27, 2026. The relationship did not end: it shifted toward greater flexibility for OpenAI while preserving significant Microsoft investment, cloud, licensing, and revenue ties.
What the September 2025 announcement did—and did not—say
On September 11, 2025, OpenAI and Microsoft said they had signed a non-binding MOU covering the next phase of their partnership and were working toward definitive contractual terms. The announcement established that the companies had a preliminary framework and intended to continue collaborating; it did not publish the final terms. OpenAI and Microsoft’s joint statement did not disclose a revised revenue-sharing formula, final ownership percentages, detailed AGI-trigger provisions, or precise cloud-exclusivity terms.
“Non-binding” did not mean the announcement was irrelevant: it signaled that negotiations had reached a framework. But it was not accurate to treat the MOU as a completed restructuring deal or a full settlement of the companies’ contractual relationship. The definitive agreement announced on October 28, 2025, and the April 2026 amendment are the later milestones that clarify how the relationship changed.
Why reports described tension between the companies
Contemporary coverage reported friction, but reports of strain should not be confused with a confirmed breakup or a specific contractual change. The companies had different needs and incentives. OpenAI sought capital and more compute and infrastructure options; Microsoft sought durable access to OpenAI technology, commercial returns, and protection for its investment.
#1 Best Overall
- Brilliant Display – Stunning 13.8" PixelSense touchscreen[1], with brilliant LCD display[2], unleashes luminous whites, deeper blacks and colors so richly saturated bringing vivid life into every frame – perfect for work, school, streaming and creative tasks.
- Power that lasts all day – With 20 hours of battery life[3], the new Surface Laptop powers through your entire day, so you can create, work and stream from morning to night without reaching for a charger.
- Work at the speed of your ideas – Built with the latest Qualcomm Snapdragon X2 Elite (12 Core) processors, Surface Laptop delivers fast, AI‑accelerated performance—making it the most powerful Surface laptop for everything from multitasking to demanding workloads.
- The ports you need – Charge on-the-go, transfer data fast, or create the ultimate desktop set up with two USB-C / USB4[4] ports.
- Built-in AI Companion – Work smarter, create freely, and communicate with confidence—Copilot[5] on Windows 11 is always there to help.
Several issues made the relationship consequential:
- OpenAI was pursuing infrastructure and partnerships beyond Microsoft, while Microsoft was working to reduce reliance on one model supplier and was reported to have explored rival models for some products.
- OpenAI’s proposed corporate restructuring raised questions about control, ownership, and the treatment of Microsoft’s investment.
- The agreement’s AGI-related provisions mattered because they could affect Microsoft’s access to technology if OpenAI declared that it had achieved artificial general intelligence.
These are reported strategic pressures, not proof that either company had decided to end the partnership. A contemporary account of the preliminary agreement and reported strain appeared in TechTimes’ September 12, 2025 coverage.
How OpenAI’s nonprofit and public-benefit structure fit in
OpenAI began with a nonprofit structure and proposed creating a for-profit public benefit corporation (PBC) while keeping the nonprofit parent in control. The nonprofit was expected to receive an equity stake worth more than $100 billion. In OpenAI’s statement on the nonprofit and PBC, the company described a structure intended to support large-scale fundraising while retaining a mission-oriented governance role.
Rank #2
- With 16 GB of memory, runs as many programs as you want without losing the execution
- The 13.5" 2256 x 1504 screen provides a great movie watching experience
- 512 GB SSD is enough to store your essential documents and files, favorite songs, movies and pictures
- 8 Hours battery run time helps you stay unwired and work longer non-stop
That proposal did not mean the nonprofit would disappear or automatically lose control. It also made the restructuring more than a routine commercial contract: governance, regulatory work, valuation, and the division of economic interests mattered to the parties and potential investors. The stated value of the nonprofit’s proposed stake was not a final ownership percentage for every stakeholder.
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →What the October 2025 definitive agreement added
On October 28, 2025, OpenAI announced a definitive agreement that turned the preliminary framework into a disclosed set of terms. The company described Microsoft’s investment as valued at approximately $135 billion, or roughly 27% on an as-converted diluted basis, inclusive of all owners. That is the agreement’s stated investment valuation and ownership basis—not a $135 billion purchase price for OpenAI. The announced provisions also addressed model rights, cloud commitments, AGI verification, and work with other partners. OpenAI’s announcement of the definitive agreement is the source for these terms.
| Area | Terms announced October 28, 2025 |
|---|---|
| Microsoft investment | Valued at approximately $135 billion; described as roughly 27% on an as-converted diluted basis, inclusive of all owners. |
| Frontier-model relationship | Microsoft remained OpenAI’s frontier-model partner. |
| AGI determination | An independent expert panel would verify an AGI declaration under the announced structure. |
| Model and product IP | Microsoft retained exclusive IP rights and Azure API exclusivity until AGI under the announced structure. Its model and product IP rights extended through 2032 and included post-AGI models subject to safety guardrails. Research-IP rights were subject to separate timing and AGI provisions. |
| Other partners and products | OpenAI could jointly develop some products with third parties and use other cloud providers for some non-API products. It could also release qualifying open-weight models. |
| Microsoft’s options | Microsoft could pursue AGI independently or with third parties. |
| Azure services | OpenAI committed to purchase an additional $250 billion of Azure services. Microsoft lost its right of first refusal to be OpenAI’s compute provider. |
| U.S. government national-security API access | OpenAI could provide API access to these customers regardless of cloud provider. |
The arrangement distinguished Microsoft’s roles: it was an investor, a cloud provider, an IP licensee, and a strategic distribution and enterprise partner. Those interests were related but not interchangeable. For example, a substantial equity interest did not by itself establish cloud exclusivity, and a cloud commitment did not define Microsoft’s IP rights.
Rank #3
- A PREMIUM PERFORMANCE LAPTOP — Ready for work, school, and creativity. Built for busy days, big projects, and nonstop multitasking. Run video calls, school and work apps, 20+ browser tabs, and AI tools at the same time without slowing down.
- WITH AI BUILT IN — With a dedicated AI chip (Qualcomm Snapdragon X2 Elite), this Copilot+ PC[5] on Windows 11 helps you work smarter and faster. Prompt, create, and automate with ease - ready for even your most demanding tasks.
- A 13.8" TOUCHSCREEN YOU'LL ACTUALLY USE — Sharp colors, real detail, smooth 120Hz scrolling on the PixelSense touchscreen[1] with LCD display[2]. Tap, scroll, or pinch to zoom - whichever feels right for streaming, editing photos, or daily work.
- 20 HOURS OF BATTERY (LEAVE THE CHARGER) — Up to 20 hours of video playback[3] on a single charge. Work from a coffee shop, take it to class/work, or binge an entire season on a long flight — it'll keep up.
- THE PORTS YOU NEED — Two USB-C / USB4[4] ports for fast charging, big file transfers, or hooking up to three 4K monitors when you want a full desktop. Wi-Fi 7 keeps you online and fast wherever you are.
What changed in the April 2026 amendment
On April 27, 2026, OpenAI announced another amendment. Microsoft remained OpenAI’s primary cloud partner, but OpenAI could serve its products across any cloud provider. OpenAI products would ship first on Azure unless Microsoft could not or chose not to support the required capabilities. “Primary” therefore did not mean exclusive. OpenAI’s April 2026 announcement describes the amended terms.
- IP licensing: Microsoft retained a license to OpenAI model and product IP through 2032, but the license became non-exclusive. Microsoft kept licensed rights; OpenAI gained the ability to license or use the relevant IP beyond an exclusive arrangement.
- Revenue sharing: Microsoft would no longer pay a revenue share to OpenAI. OpenAI’s payments to Microsoft would continue through 2030 at the same percentage, subject to a total cap. The announcement did not disclose the cap amount.
- Continuing ties: Microsoft remained a major shareholder and primary cloud partner, alongside its continuing license and the other economic ties described in the agreement.
The practical direction was toward a less exclusive relationship, not an absence of partnership. The public announcement does not reproduce every contractual detail, so product-level implementation and the precise financial effect of the cap cannot be determined from the disclosed summary alone.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteWhat the changes mean for Azure customers and developers
Azure customers
Azure remains central to OpenAI’s infrastructure and enterprise distribution. Customers already using Azure may value familiar procurement, security, governance, and integrations. The later amendment gives OpenAI more ability to serve products across other clouds, but the phrase “primary cloud partner” alone does not establish that every workload or product is available on every cloud.
Rank #4
- A PREMIUM PERFORMANCE LAPTOP — Ready for work, school, and creativity. Built for busy days, big projects, and nonstop multitasking. Run video calls, school and work apps, 20+ browser tabs, and AI tools at the same time without slowing down.
- WITH AI BUILT IN — With a dedicated AI chip (Qualcomm Snapdragon X2 Elite), this Copilot+ PC[5] on Windows 11 helps you work smarter and faster. Prompt, create, and automate with ease - ready for even your most demanding tasks.
- A 15" TOUCHSCREEN YOU'LL ACTUALLY USE — Sharp colors, real detail, smooth 120Hz scrolling on the PixelSense touchscreen[1] with LCD display[2]. Tap, scroll, or pinch to zoom - whichever feels right for streaming, editing photos, or daily work.
- 19 HOURS OF BATTERY (LEAVE THE CHARGER) — Up to 19 hours of video playback[3] on a single charge. Work from a coffee shop, take it to class/work, or binge an entire season on a long flight — it'll keep up.
- Two USB-C / USB4[4] ports and a microSD card reader for fast charging, big file transfers, or hooking up to three 4K monitors when you want a full desktop. Wi-Fi 7 keeps you online and fast wherever you are.
OpenAI API customers
Hosting and availability depend on the product and the applicable terms—not simply on whether OpenAI can use other cloud providers. On February 27, 2026, OpenAI said Azure remained the exclusive cloud provider for stateless OpenAI APIs under the then-described arrangement, while OpenAI could commit additional compute elsewhere. That statement predates the April 27 amendment and should be read as a dated description, not a complete statement of the amended arrangement. The later announcement says OpenAI can serve all products across any cloud, but does not set out every API-specific operational rule. See OpenAI’s February 2026 statement and its April 2026 amendment announcement.
Enterprise buyers
For a buyer, the useful comparison is between the service and contract that meet a workload’s requirements, not a simple choice between “OpenAI” and “Microsoft.” Evaluate:
- whether the need is direct OpenAI API access, an Azure-hosted service, or a first-party OpenAI product;
- governance, data-residency, regional-capacity, security, and support requirements;
- model availability and whether the workload depends on a particular product or API;
- procurement preferences, portability, and the consequences of relying on one provider.
The partnership announcements do not establish that one route is cheaper, technically superior, or available in every region. Buyers should confirm current service terms and availability with the relevant provider.
Free tools Windows power users keep installed
One-click scans. No signup required.
Best Value
- Brilliant Display – Stunning 13.8" PixelSense touchscreen[1], with brilliant LCD display[2], unleashes luminous whites, deeper blacks and colors so richly saturated bringing vivid life into every frame – perfect for work, school, streaming and creative tasks.
- Power that lasts all day – With 20 hours of battery life[3], the new Surface Laptop powers through your entire day, so you can create, work and stream from morning to night without reaching for a charger.
- Work at the speed of your ideas – Built with the latest Qualcomm Snapdragon X2 Elite (12 Core) processors, Surface Laptop delivers fast, AI‑accelerated performance—making it the most powerful Surface laptop for everything from multitasking to demanding workloads.
- The ports you need – Charge on-the-go, transfer data fast, or create the ultimate desktop set up with two USB-C / USB4[4] ports.
- Built-in AI Companion – Work smarter, create freely, and communicate with confidence—Copilot[5] on Windows 11 is always there to help.
What each company gained—and what it still depends on
Microsoft
Microsoft retained an investment, a license to OpenAI model and product IP through 2032, Azure demand, and a continuing role as OpenAI’s primary cloud and frontier-model partner. The revised arrangement also left Microsoft room to pursue AGI independently or with other companies and removed its right of first refusal over OpenAI’s compute provider. The trade-off is less exclusivity and greater exposure to OpenAI’s growth, valuation, governance, and the practical boundaries between shared and independently developed technology.
OpenAI
OpenAI gained more room to work with other cloud providers and partners, while maintaining access to Microsoft capital, infrastructure, and enterprise reach. Those options came alongside substantial ongoing ties: revenue-sharing payments to Microsoft through 2030 subject to a cap, a Microsoft IP license through 2032, and the Azure-services purchase commitment announced in October 2025. OpenAI also retained governance obligations associated with its nonprofit parent and PBC structure.
What remains unsettled in public
The companies’ public statements describe key terms but do not reproduce the complete contracts. The April 2026 announcement does not state the revenue-sharing cap amount. The operational meaning of “primary cloud partner” may differ across products and workloads, and the public disclosures do not resolve every product-specific hosting rule. AGI also remains a contractual and governance concept whose consequences depend on future determinations, including the verification mechanism described in October 2025; it is not simply a technical threshold spelled out in the public summaries.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →
