The $35 billion on five days' notice

Amazon committed $50 billion to OpenAI this spring: $15 billion paid upfront for preferred stock, and $35 billion it does not control the timing of. The filing structures that second tranche as a standing obligation — if one of two triggers fires before the end of 2028, Amazon must invest, on as little as five business days' notice. One trigger is plain: OpenAI files to go public. The other is a 'milestone' whose definition Amazon redacted from the public document.

Altman, denying the reported trigger: "We're not doing new deals that stop when AGI gets reached."

That redaction is where the story everyone reported came from. With the trigger blacked out, several outlets filled the blank with the obvious guess — that the milestone is artificial general intelligence — and 'IPO or AGI' became the headline. The filing supports no such reading; it also redacts what could terminate the obligation and what counts as a breach, so the public literally cannot tell what would force the wire. Sam Altman went on the record to deny the AGI version outright. The contract that genuinely ties money to an AGI declaration is OpenAI's older one with Microsoft, not this one.

What is verifiable is unusual enough on its own: a hyperscaler has pre-committed $35 billion to a private company and surrendered the timing to a clause it won't show its own shareholders. The share class even flips with circumstance — preferred stock if the money goes in before an IPO, ordinary common stock if after. Strip the speculation and the deal still marks how frontier-AI capital now moves: not as a check written against a result, but as a trigger armed in advance against a milestone the rest of us aren't allowed to read.