The once-formidable partnership between Microsoft and OpenAI is now teetering on the edge of collapse. Despite having once supported OpenAI CEO Sam Altman during the 2023 leadership crisis, Microsoft CEO Satya Nadella is reportedly ready to walk away from the alliance after OpenAI threatened legal action against its biggest backer.

From Strategic Alliance to Rivalry

According to Financial Times, Microsoft is seriously considering ending tense negotiations with OpenAI as the latter attempts to restructure itself from a nonprofit into a for-profit entity. What was once a strategic partnership worth billions of dollars has now turned into a high-stakes power struggle that may shape the future of the AI industry.

Though Nadella had played a key role in reinstating Altman after OpenAI’s board ousted him in late 2023, the alliance has since soured amid disputes over ownership, revenue sharing, and control.

Clashing Interests Over Ownership and IPO

Sources close to the matter state that Microsoft is willing to maintain the status quo under the 2019 commercial agreement until 2030, which gives Microsoft exclusive rights to distribute OpenAI’s models via Azure and a 20% revenue share on up to $92 billion in sales.

However, OpenAI’s for-profit transition involves a re-evaluation of equity stakes. Despite having invested over $13 billion, Microsoft’s request for 20–49% ownership in the restructured company has not been accepted. OpenAI wishes to retain majority control as it eyes a potential IPO.

Legal Threats and Escalating Conflict

At one point, OpenAI even threatened to sue Microsoft for anti-competitive practices to gain leverage. Microsoft, unfazed, asserted that it is prepared to operate under the current agreement until 2030 and delay OpenAI’s IPO ambitions.

The growing friction is rooted in philosophical differences. Nadella believes foundational models like ChatGPT will become commoditized, with true value residing in applied solutions like Microsoft Copilot. Consequently, Microsoft has been reducing reliance on OpenAI by building its own AI models and integrating other sources into its services.

In contrast, OpenAI demands more compute resources and access to high-performance chips, and also reserves the right to revoke Microsoft’s preferential access if AGI (Artificial General Intelligence) is reached.

Competitive Moves and Strategic Shifts

Microsoft’s intentions became more explicit in early 2024 when it secretly recruited Mustafa Suleyman, co-founder of DeepMind, investing $650 million to develop a GPT-4 competitor. However, due to underwhelming early performance, Microsoft still depends on OpenAI in the short term.

Communication between the two leaders has become increasingly formal. Whereas Altman and Nadella used to message each other five or six times daily, now their conversations are mostly confined to scheduled calls.

OpenAI's Fragile Position

While Microsoft has diversified its AI supply chain—including onboarding Elon Musk’s xAI’s Grok model into its cloud offerings—OpenAI is facing mounting pressure. Transitioning to a for-profit model is critical for attracting fresh funding and preparing for an IPO. But without Microsoft’s approval before the end of 2025, OpenAI risks losing a $10 billion commitment from SoftBank, part of a $30 billion fundraising round.

OpenAI also continues to struggle with the immense computational demands of maintaining ChatGPT’s 500 million weekly users and training future models. Its relationship with Microsoft on compute capacity has significantly deteriorated, and Microsoft recently canceled a 200MW data center deal tied to OpenAI model training.

In a symbolic move, Altman appeared at the White House in January 2025 alongside President Trump and CEOs from SoftBank and Oracle, announcing a $500 billion Stargate project—mirroring the ambitions he once shared with Nadella.

The Impending Split

Although both sides insist negotiations are ongoing and amicable, internal developments suggest both are preparing for a dramatic split. Microsoft is confident in its contractual rights, allowing it to access OpenAI’s technologies through 2030, and has already integrated multiple models beyond OpenAI to reduce dependency.

A particularly contentious incident reportedly involved Mustafa Suleyman shouting at OpenAI's legal team during a meeting on intellectual property sharing, witnessed by OpenAI CTO Mira Murati and other executives.

Microsoft has also begun experimenting with cost-cutting by integrating third-party AI models into Microsoft 365 Copilot, further testing OpenAI’s patience.

The final wedge may be a growing ideological rift. While Altman remains a firm believer in near-term AGI, Nadella has dismissed such optimism as “nonsense.” Microsoft negotiators have made it clear they believe AGI is far from realization and question OpenAI’s recent delays in delivering advanced model outputs.

Though no formal announcement has been made, signs point to a looming and potentially seismic breakup. The multi-billion-dollar partnership that helped define the current era of generative AI may soon become a cautionary tale of corporate divergence. Microsoft, now actively hedging its bets, appears ready to move forward with or without OpenAI. The question remains: who needs whom more in the age of artificial intelligence?

(Cre: BBC)