Anthropic
Startup lab · founded 2021 · San Francisco, United States · about 2,500 people (Jan 2026)
The Claude models, Constitutional AI and interpretability research on what happens inside models.
Landmark work
Leaders
On Leaders
Dario Amodei
Chief Executive Officer and Co-founder
Chris Olah
Co-founder
Jared Kaplan
Chief Science Officer and Co-founder
Jack Clark
Co-founder and Head of Policy
Sam McCandlish
Co-founder
Tom B. Brown
Co-founder
Rahul Patil
Chief Technology Officer
Mike Krieger
Chief Product Officer
Irina Ghose
Head of India Business
Jan Leike
Lead, superalignment team
Jonas Adler
Other data and AI roles
Alexander Pritzel
Other data and AI roles
John Jumper
Other data and AI roles
Andrej Karpathy
Pre-training team
Rishi Sunak
Senior Adviser
Richard Fontaine
Member, Long-Term Benefit Trust
Diederik P. Kingma
Other data and AI roles
Models
On ModelsPapers on Papers
Lab page on PapersAutomating ML for Science: Can Frontier Agents Climb Scientific Hills in the Wild?
Shaping capabilities with token-level data filtering
Constitutional Classifiers: Defending against Universal Jailbreaks across Thousands of Hours of Red Teaming
Alignment faking in large language models
Sleeper Agents: Training Deceptive LLMs that Persist Through Safety Training
Constitutional AI: Harmlessness from AI Feedback
Funding and compute
On FundingSeries H
$65B, at a $965B post-money valuation, led by Altimeter, Dragoneer, Greenoaks and Sequoia
SpaceX
Compute partnership
Amazon
Up to 5 GW of Trainium capacity
Google and Broadcom
Multiple gigawatts of next-generation TPU capacity from 2027
Series G
$30B, at a $380B post-money valuation, led by GIC and Coatue
Strategic
$15B
Microsoft and NVIDIA
$30B of Azure compute, up to one gigawatt more
Google Cloud
Up to one million TPUs, well over a gigawatt online in 2026
Series F
$13B, at a $183B valuation
Series E
$3.5B, at a $61.5B valuation
Strategic
$1B
Strategic
$4B
Strategic
$2.8B
Links
- Website
- anthropic.com
- Blog
- anthropic.com/news
- GitHub
- anthropics
- Hugging Face
- anthropic
- X
- @AnthropicAI
- Papers
- Lab page on Papers
- Models
- 11 ranked models on Models
- Leaders
- Leadership on Leaders
- Funding
- 8 rounds on Funding
- Companies
- Anthropic across Glyph
About, sources and history
- Type
- Startup lab, ai research
- Headcount
- About 2,500 (Jan 2026), wikidata.org
- Sources
- wikidata.org Q116758847
- Registry
- Anthropic on Companies
History