Anthropic raises $65B Series H at $965B valuation, passing OpenAI
On May 28, 2026 Anthropic closed a $65 billion Series H at a $965 billion post-money valuation, above OpenAI's reported $852B. It said run-rate revenue had passed $47 billion. It confidentially filed for an IPO four days later.
Key facts
- $65B Series H at $965B post-money (May 28, 2026)
- Co-led by Altimeter, Dragoneer, Greenoaks, Sequoia, Capital Group, Coatue, D1 and others
- Run-rate revenue crossed $47B in May 2026 (per coverage of the announcement)
- Valuation rose from $380B (Feb) to $965B in about three months
What happened
Anthropic announced the Series H on the same day as Claude Opus 4.8. Coverage described it as likely the company's last private raise before an IPO.
Why it matters
By private valuation, Anthropic became the most valuable AI lab.
Changelog
- 2026-09-29: created
Related events
- Anthropic raises $30B Series G at $380B valuation ★★★
- Anthropic confidentially submits draft S-1 for an IPO ★★★
- Anthropic releases Claude Opus 4.8 with cheaper fast mode and Claude Code "dynamic workflows" ★★★
- Reuters obtains Anthropic's IPO prospectus: $2T+ target valuation, $4.6B 2025 revenue, 80 pages of risk factors incl. existential risk ★★★★
Sources (3)
- officialAnthropic raises $65B in Series H at $965B post-money
- pressTechCrunch: Anthropic raises $65B, nears $1T valuation ahead of IPO
- pressForbes: Anthropic's $900B round set to surpass OpenAI
id: 2026-05-28-anthropic-series-h-965b · updated 2026-09-29 · open in the interactive timeline