The AI developer OpenAI is expanding its circle of strategic supporters and entering into a comprehensive alliance with Amazon – this softens the previous exclusive relationship with Microsoft.
• OpenAI will increasingly use the cloud infrastructure of Amazon Web Services in the future
• Amazon is investing several billion US dollars as part of the cooperation
• The long-standing exclusive partnership between Microsoft and OpenAI will be weakened
Strategic realignment through alliance with Amazon
The US company OpenAI is entering into a far-reaching strategic partnership with Amazon to massively expand its computing capacity. At the heart of the agreement is the use of Amazon Web Services (AWS), Amazon’s cloud provider, as the preferred partner for training and operating future AI models. According to a press release from Amazon on February 27, 2026, the company is investing $50 billion in OpenAI as part of this cooperation. The collaboration also provides OpenAI with access to Amazon’s specialized AI chips to increase the efficiency of model development and reduce dependence on individual hardware suppliers.
Changes in the relationship with Microsoft
The announcement marks a turning point in OpenAI’s expansion strategy to date, as the company significantly diversifies its infrastructure beyond Microsoft’s systems for the first time. Although Microsoft remains a significant investor and partner, the original exclusivity of the collaboration will be formally ended by Amazon’s entry. However, in a Microsoft Corporation blog post, the company emphasizes that the existing cooperation will be continued and the integration of OpenAI technologies into its own products will be further advanced. The new developments are described as a necessary step to meet the immense demand for computing power for the next generation of artificial intelligence.
Market observers assess the shift in power
Analysts see the move as a sign of OpenAI’s growing need for independence and diversity of resources. In this context, the financial portal MarketWatch, a platform specializing in business news and stock market data, reports a possible test for the relationship between OpenAI and its previous main sponsor. While Microsoft has acted as the sole cloud provider for years, a competitive situation is now emerging between the world’s two largest cloud providers for the support of the leading AI developer. For investors, this represents a shift in the balance of power in the sector, as OpenAI’s technological leadership is no longer tied solely to the success of Microsoft’s infrastructure.
Jonas Vogt, editorial team at finanzen.net
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