$65B Series H at $965B. Then an S-1.

Anthropic raised a $65 billion Series H at a $965 billion post-money valuation, led by Altimeter, Dragoneer, Greenoaks and Sequoia, overtaking OpenAI as the world's most valuable AI startup.

Run-rate revenue crossed $47B in May, up from ~$9B at the end of 2025. Four days later they confidentially filed a draft S-1 with the SEC, with reports pointing at a possible October listing.

Sources: Series H announcement, confidential S-1, CNBC, Bloomberg