Anthropic Becomes World's Most Valuable AI Startup with $65B Funding, Surpassing OpenAI

Summary

Anthropic has officially become the world's most valuable artificial intelligence startup, surpassing OpenAI following a Series H funding round that valued the company at nearly $1 trillion. The $65 billion investment—led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital, and including a previously announced $5 billion commitment from Amazon—represents a dramatic 2.6x increase from Anthropic's February valuation of $380 billion.

The company's explosive growth is primarily driven by widespread adoption of Claude AI assistant and Claude Code, a tool that has gained significant traction among software developers. Anthropic reported that annual revenue has surged to $47 billion, a nearly 5x increase from approximately $10 billion in the prior year. To strengthen its enterprise offerings, Anthropic has also unveiled Claude Opus 4.8 and introduced Claude Mythos Preview, a specialized system designed to provide enhanced cybersecurity capabilities for corporate clients.

The funding milestone marks a significant shift in the AI startup landscape and has intensified competition at the top. OpenAI, which raised a record $122 billion in March, was valued at $852 billion—now substantially behind Anthropic. Both companies are preparing for eventual public listings, with OpenAI potentially filing for an initial public offering within weeks, while Anthropic is also considering a stock offering, though no timeline has been specified.

• New product releases—Claude Opus 4.8 and Claude Mythos Preview for enterprise cybersecurity—demonstrate Anthropic's expansion beyond consumer-facing applications