Anthropic, which operates AI chatbot Claude, did not disclose the size or the terms of the offering.

Artificial intelligence giant Anthropic has confidentially filed for an initial public offering (IPO) in the United States, teeing up what could become a watershed moment for Wall Street’s AI frenzy.

The move, announced on Monday, sets up a high-stakes test of whether investor appetite for the AI revolution that has reshaped white-collar work around the world can match the sky-high expectations surrounding the booming sector.

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Anthropic, which operates AI chatbot Claude, did not disclose the size or the terms of the offering. Confidential submissions let companies advance IPO preparations while shielding sensitive financial details from rivals and the public.

Anthropic last raised $65bn at a post-money valuation of $965bn in late May, putting it ahead of rival OpenAI. The company said at the time it was making annualised revenue of $47bn from selling its technology to people and organisations using Claude to write code and do other work and personal tasks on their behalf.

The crucial step towards a listing comes on the heels of SpaceX’s mega-IPO, which is on course to rewrite the record books as the Elon Musk-led company pursues a $75bn offering at a $1.75 trillion valuation.

Anthropic was formed in 2021 by ex-OpenAI leaders, and now both AI firms, along with Elon Musk’s rocket and AI company SpaceX, are all expected to become publicly traded. All three are also still losing more money than they make, fuelling concerns of an AI bubble.

OpenAI and Anthropic have become the face of the AI boom that has redrawn corporate strategies, sparked a global arms race for computing power and talent, and turned AI-linked companies into some of the market’s most richly valued firms.

Anthropic’s rapid rise in early 2026 rattled markets, triggering sharp sell-offs in software and IT stocks as investors worried its increasingly autonomous AI tools could upend traditional business models and accelerate disruption across industries.

“OpenAI and Anthropic are in a race to go public before capital runs out,” said analyst Gil Luria from the investment firm DA Davidson.

“The other reason for Anthropic to try to beat OpenAI out to the public market is that they will get to set the agenda for how a frontier model reports financials and do so in a way that is favourable to their financial model.”

OpenAI is also preparing to confidentially file for a US IPO in the coming weeks, adding to a wave of blockbuster ‌listings anticipated in the year ahead.

As many blockbuster listings race towards public markets, companies from SpaceX to AI giants are competing for a finite pool of investor capital.

“The combined demand for capital from SpaceX, OpenAI and Anthropic will be so considerable that it is likely to create disruptions in the capital markets, so going early will be a great advantage,” Luria said.

The listing would represent one of the most consequential stock market debuts in years, potentially reshaping benchmark indexes, investor flows and the broader narrative driving US equities.

At close to a $1 trillion valuation, Anthropic would vault into the top tier of the S&P 500, alongside a handful of elite companies that dominate global equity markets.

An Anthropic debut would be a major boost for the long-sluggish IPO market, though experts and bankers warn an offering of such scale could drain liquidity and investor attention from smaller listings.

Source: https://www.aljazeera.com/economy/2026/6/1/ai-giant-anthropic-files-for-us-ipo-as-investors-bet-big-on-ai-future?traffic_source=rss