Anthropic heads toward a Nasdaq listing as OpenAI routes ChatGPT Enterprise through AWS procurement

Anthropic, PBC filed a registration statement on Form S-1 with the Securities and Exchange Commission (SEC) on October 26 for an initial public offering (IPO) of Class A common stock. Secondary analyses of the filing report first-half 2026 revenue of $16.29 billion, against $1.16 billion a year earlier, and a net loss of $80.7 billion over the same six months. Reported quarterly figures and trailing totals differ across outlets. One analyst notes that Anthropic books some revenue on a gross basis, which makes its headline number larger than it would be under the net reporting some peers use.

Press reports, citing investor conversations, say trading on the Nasdaq Global Select Market under the ticker ANT could begin November 19 or 20, with valuation talk in a range of roughly $1.25 trillion to $1.75 trillion. Anthropic has not announced a price range, and one reported range was retracted. Anthropic is a public benefit corporation. In October it published a post titled Investing in the public benefit, and public-market investors will weigh that commitment against the company's obligations to shareholders.

OpenAI made a distribution move the same week. It announced that ChatGPT Enterprise is now available in AWS Marketplace, so organizations can buy it through their existing AWS purchasing and billing relationships. It follows OpenAI's earlier move of models and Codex onto Amazon Bedrock. GeekWire reported on an internal OpenAI memo that called the Amazon partnership a key enterprise growth driver and said the Microsoft relationship had held OpenAI back.

Both developments rest on the same fact. Enterprise buyers already have cloud contracts, and the vendor that fits inside those contracts avoids a new procurement cycle.