Anthropic raises $65B Series H at $965B valuation, passing OpenAI
Confirmed
Importance: major (4 of 5)The takeaway
On May 28, 2026 Anthropic closed a $65 billion Series H at a $965 billion post-money valuation, above OpenAI’s reported $852B.
Status
- Claim
Confirmed
- Our reporting
- High confidence
- Importance
- Major (4 of 5)
- Last verified
- 29 September 2026
Your AI and this story
- GPT-6 Astra28 days after its cutoff
- Claude Opus 5.5In its training data
- Gemini 4 Hydrogen58 days after its cutoff
- Grok 4.7In its training data
It is after the cutoff of GPT-6 Astra and Gemini 4 Hydrogen, and can be in the training data of Claude Opus 5.5 and Grok 4.7.
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.
Sources
3 sources from 3 sites. Numbers match the chips in the text.
3 sources: 1 primary, 2 press
Primary
- Anthropic raises $65B in Series H at $965B post-moneyanthropic.com, official
Press
- TechCrunch: Anthropic raises $65B, nears $1T valuation ahead of IPOtechcrunch.com, press
- Forbes: Anthropic’s $900B round set to surpass OpenAIforbes.com, press
Changes
- Filed