Dario Amodei-led artificial intelligence (AI) company Anthropic, maker of the popular Claude chatbot and coding tool, among other things, confidentially filed draft papers in the US on Monday for an initial public offering (IPO). Rival OpenAI, led by Sam Altman, is also looking to raise money from the public but has not yet filed for an IPO.
If Anthropic’s offer goes ahead, it will test investor appetite for AI companies, which have commanded massive private valuations—both Anthropic and OpenAI are within shouting distance of the trillion-dollar mark.
The Anthropic filing adds to the buzz on Wall Street, coming as it does after the Elon Musk-led SpaceX's $75 billion IPO filing, which is expected to move the bourses in its own way.
It was reported in May that OpenAI was preparing to confidentially file for a US IPO in the coming weeks.
Confidential submissions let companies advance IPO preparations while shielding sensitive financial details from rivals and the public.
Also Read: Anthropic IPO filing ratifies Wall Street's AI obsession
Here's the lowdown on Anthropic:
Staggering numbers
Anthropic raised $65 billion at a post-money valuation of $965 billion in late May, putting it ahead of OpenAI. The company’s valuation more than doubled from $380 billion in February, reflecting its swift rise as a leading contender in the AI race and intense investor demand for stakes in frontier companies.
The company's revenue run rate crossed $47 billion earlier this month. The top line has been on steroids, going from $87 million in January 2024 to roughly $4 billion in July 2025, $14 billion this February, and $30 billion in April.
Customer base
Anthropic officially serves a customer base of over 300,000 business users. This is up from fewer than 1,000 just two years ago, with large accounts growing multifold in a single year.
Anthropic doesn’t publish exact figures for its free-tier consumer sign-ups. But web traffic analytics show that Claude.ai receives about 288 million monthly visits. The Claude mobile app has over 12.5 million monthly active users (MAUs), according to reports.
Also Read: Anthropic's Claude writes 90% of code: CFO Krishna Rao reveals productivity gains
Key growth drivers
Unlike OpenAI, which relies on building a consumer subscriber base via ChatGPT, Anthropic focusses majorly on high annual contract value (ACV) enterprise deals.
While Claude AI has good traction, Anthropic's revenue is driven by its agentic tools. According to Venture Beat, Claude Code hit $1 billion in annualized revenue within six months of its launch in February 2025. The product was generating over $2.5 billion in run-rate revenue in February this year.
Anthropic has said Claude Code's weekly active users had doubled since January 1 and that business subscriptions had quadrupled since the start of 2026.
Coming soon: Mythos
The company made headlines recently for its unreleased frontier AI model, Claude Mythos, which is currently gated under "Project Glasswing" due to its extreme autonomous cybersecurity capabilities. Discovered by accident during training, Mythos possesses unprecedented reasoning that allows it to automatically find and exploit thousands of critical software vulnerabilities.
The model is supposed to be released in a few weeks. In May, Anthropic launched an upgraded Claude Opus 4.8 model. The company said Opus 4.8 will be available for the same price as its predecessor and shows improvements across benchmarks, particularly in honesty.
