Amazon completed its staged $50 billion investment in OpenAI on July 31, 2026, finalising the remaining $35 billion after milestone conditions were met. The company now holds roughly 5% of the ChatGPT maker, according to the Financial Times.
The completion came hours after Amazon reported blockbuster second-quarter earnings, with AWS revenue climbing 36.7% on surging AI demand. The investment closes ahead of a public listing OpenAI is expected to pursue next year.
🔍 THE BOTTOM LINE
Amazon’s $50 billion is now fully deployed into OpenAI — and the same quarter that triggered the final payment also showed why Amazon was willing to make it. AWS’s AI revenue run rate exceeded $25 billion, and the company raised its 2026 capital spending guidance to $220 billion. The bet is that OpenAI’s compute needs and Amazon’s cloud infrastructure are the same business.
How the Deal Was Structured
Amazon disclosed the commitment through a Form 8-K filing dated February 27, 2026. An Amazon subsidiary agreed to purchase $35 billion of OpenAI Series C preferred shares, with the payment contingent on OpenAI completing specified milestones or pursuing a public listing.
The company had already invested $15 billion as an initial commitment. The remaining $35 billion was released after those milestones were met, as Blockonomi reported. The transaction was confirmed through Amazon’s quarterly SEC filing.
Under the partnership, AWS became the exclusive third-party cloud provider for OpenAI’s Frontier platform — OpenAI’s enterprise system for running AI agents across business data. Amazon also committed 2 gigawatts of Trainium custom chip capacity for OpenAI’s compute needs.
The Q2 Earnings That Triggered the Close
Amazon’s second-quarter results, reported the same day the investment closed, showed why the milestones were met:
- Revenue: $200.6 billion, up 20% year-over-year
- Operating income: $27.5 billion, up 43% year-over-year
- AWS revenue: up 36.7%, with AI revenue run rate exceeding $25 billion
- Amazon Ads: $19.8 billion, up 26% year-over-year
- 2026 capex guidance: raised to $220 billion
CEO Andy Jassy said AWS’s artificial intelligence revenue run rate exceeded $25 billion, with triple-digit percentage growth compared to the same period last year, according to Bloomberg.
Why Amazon Is Still Bankrolling Anthropic Too
The OpenAI investment does not replace Amazon’s existing commitment to Anthropic. Amazon previously invested $8 billion in Anthropic, making it the largest startup investment in Amazon’s history at the time. The company now holds stakes in both frontier labs — a hedging strategy that mirrors Microsoft’s position of investing in OpenAI while building its own models.
What is Amazon’s AI strategy? Amazon is building AI on three fronts: its own custom chips (Trainium), its cloud platform (AWS Bedrock, which hosts third-party models including Anthropic’s Claude and OpenAI’s GPT), and direct equity stakes in the leading model makers. The company does not build frontier models itself — it owns pieces of the companies that do and rents them compute.
The Microsoft Complication
Amazon’s completed investment in OpenAI sits inside an ongoing legal dispute. Microsoft, which has invested over $13 billion in OpenAI since 2019, claimed the Amazon partnership violated their existing contract terms, as we previously reported. The dispute centres on OpenAI’s Frontier platform — Microsoft argues its agreement gives it exclusive cloud provider rights that Amazon’s deal undermines.
That dispute remains unresolved. The $50 billion has now changed hands regardless.
The IPO Countdown
OpenAI is expected to pursue a public listing next year. Amazon’s 5% stake, acquired at preferred-share pricing, would convert to common stock in an IPO — potentially at a significantly higher valuation.
The S&P 500 rewrote its listing rules earlier this year to accommodate AI companies that do not meet traditional profitability requirements. OpenAI, which was valued at over $500 billion in its most recent private funding round, is widely expected to be one of the largest IPOs in history.
NZ Angle
AWS is the dominant cloud provider for New Zealand’s tech sector. The company’s local presence includes a planned Auckland region — one of 36 new AWS regions announced globally. For NZ businesses using OpenAI through AWS, the completed investment means tighter integration between the two companies’ platforms. The $220 billion capex commitment is building data centres that New Zealand companies will eventually rent compute from, even if none of those centres are onshore.
❓ FAQ
How much of OpenAI does Amazon own? Roughly 5%, acquired through $50 billion in Series C preferred stock purchases.
Does this mean OpenAI models run on AWS? OpenAI’s Frontier enterprise platform now runs on AWS as its exclusive third-party cloud provider. Microsoft Azure remains OpenAI’s primary cloud infrastructure partner for other products.
What were the milestones that triggered the final $35 billion? Amazon has not disclosed the specific milestones. The agreement required OpenAI to complete “specified milestones or pursue a public listing.” The strong Q2 AWS results and OpenAI’s continued growth are the likely triggers.
Is Amazon still investing in Anthropic? Yes. Amazon holds a separate $8 billion stake in Anthropic. The company is hedging across both frontier labs rather than betting on one.
What happens to Amazon’s stake when OpenAI goes public? Preferred shares typically convert to common stock in an IPO. The conversion ratio and any lock-up restrictions will be detailed in OpenAI’s S-1 filing.
🔍 THE BOTTOM LINE
Amazon’s $50 billion is fully committed. The same quarter that unlocked the final payment showed why Amazon was willing to pay it — AI is now driving AWS growth at rates the company has not seen since the cloud division’s early years. Whether the investment generates returns depends on OpenAI’s IPO valuation, but Amazon’s real bet is simpler: that the companies building frontier AI models will need more compute than anyone else, and Amazon will be the one selling it to them.
