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20262020s
Anthropic $65B Series H
Anthropic closed a $65 billion Series H at a $965 billion valuation in May 2026, surpassing OpenAI as the most valuable AI startup, and filed confidentially for an IPO on June 1.
Why It Mattered
The round, closed May 28, 2026 and co-led by Altimeter, Dragoneer, Greenoaks, Sequoia, and others, vaulted Anthropic's valuation from $380 billion (its February 2026 raise) to $965 billion in three months, above OpenAI's $852 billion. Backed by annualized revenue that grew from $1 billion at the end of 2024 to roughly $30 billion by March 2026, it was widely read as the final private raise before a landmark IPO and a signal of how quickly enterprise AI spending had scaled.
Who Built It
Anthropic
Applications
- AI Funding
- Enterprise AI
- Capital Markets