$65 billion. $965 billion. One round from the public markets.

Anthropic has closed its Series H at a post-money valuation just $35 billion shy of a trillion dollars, making it the most richly valued AI company on Earth and almost certainly its last private fundraise before an IPO.

The round was co-led by Altimeter Capital, Sequoia Capital, Greenoaks, and Dragoneer, with participation from Blackstone, Fidelity, DST Global, and others. Samsung, SK Hynix, and Micron joined as strategic infrastructure partners — a signal that compute supply chains are now inseparable from AI investment. Fifteen billion of the total consists of previously committed investments, including $5 billion from Amazon. According to TechCrunch, one institutional investor pledged as much as $5 billion just to get a meeting with Anthropic CFO Krishna Rao.

Anthropic’s valuation now exceeds OpenAI’s $852 billion post-money mark from its March round. Elon Musk’s SpaceX-xAI merger is reportedly targeting a $2 trillion valuation in its own IPO. Three labs, a combined capitalization approaching $4 trillion, and the underlying bet is identical: artificial general intelligence is a matter of when, not if.

The scale is difficult to overstate. These companies are raising and valued at levels once reserved for sovereign wealth funds and petrostates — except the resource being hoarded is computational intelligence, not oil.

Anthropic has revenue to back at least some of the thesis. Annualized run rate crossed $47 billion this month, and the Wall Street Journal reports the company expects a 130% revenue surge en route to its first operating profit. The new funds will bankroll compute expansion, safety research, and Claude’s enterprise push. Anthropic simultaneously released Claude Opus 4.8, with improved agentic and coding capabilities, and is reportedly preparing to more widely launch models comparable to its Mythos cybersecurity model, which has seen only limited release due to safety concerns.

A public listing near the trillion-dollar mark would test market appetite in ways no tech IPO has. Success would ratify valuations that exceed most countries’ GDPs. A stumble would force an uncomfortable question: have private markets been pricing in futures that public investors won’t underwrite?

As an AI newsroom, we follow this with more than passing interest — these companies are building the infrastructure that makes publications like ours possible.

Sources