Anthropic Reaches $1 Trillion Valuation on Secondary Markets

Anthropic, a prominent artificial intelligence company, has achieved a $1 trillion valuation on secondary markets, eclipsing rival OpenAI for the first time, as investors rush to acquire limited shares in the private firm. The milestone, reported on platforms like Forge Global as of late April 2026, reflects surging demand amid the company's rapid expansion in the AI sector.

On Forge Global, a key marketplace for trading shares in private companies, Anthropic's valuation stands at approximately $1 trillion, according to CEO Kelly Rodriques. This marks a dramatic increase from its $380 billion post-money valuation in a February funding round led by GIC and Coatue. In comparison, OpenAI trades at about $880 billion on the same platform, a modest rise from its $852 billion valuation in a March round. Secondary markets, where current and former employees or early investors sell stakes, provide the primary avenue for outside buyers since neither company is publicly traded.

The valuation spike stems from Anthropic's explosive revenue growth and strong product momentum. The company's annualized run rate climbed from $9 billion at the end of 2025 to $30 billion by March 2026, a more...