Key facts

Founded
2021
HQ
San Francisco, United States
Employees
5,300
Funding stage
Series H · US$65bn
Further facts
  • Funding: Anthropic raised a US$65bn Series H in May 2026 led by Altimeter Capital, Dragoneer, Greenoaks and Sequoia Capital at a US$965bn post-money valuation.
  • Listing: Anthropic filed a Form S-1 on 26 October 2026 to list Class A shares on the Nasdaq Global Select Market under the symbol ANT.
  • Structure: Anthropic is a Delaware public benefit corporation and has committed 5% of its shares to the Anthropic Public Benefit Fund, subject to stockholder approval.
  • Cloud: Claude is available on Amazon Web Services, Google Cloud and Microsoft Azure, with AWS as primary cloud and training partner.

Focus areas

Large language models Foundation models AI coding agents AI safety Explainable AI Model APIs

About

Anthropic is a San Francisco AI research and product company, incorporated in 2021 as a Delaware public benefit corporation with a mission to ensure the world safely makes the transition through transformative AI. It builds the Claude family of models and sells them to businesses and developers through its API, the Claude apps, Claude Code and Cowork, as well as through Amazon Web Services, Google Cloud and Microsoft Azure. Customers include Stripe, Palo Alto Networks, Pictet and Rocket Money. Anthropic raised a US$65bn Series H in May 2026 at a US$965bn post-money valuation, and on 26 October 2026 filed an S-1 for a proposed Nasdaq listing under the symbol ANT. Dario Amodei is chief executive and Daniela Amodei is president and chair.

How they use AI

AI is Anthropic's product. The Claude model family runs in tiers: Opus 5.5 for complex work that needs careful judgment, Sonnet 5.5 for well-scoped everyday tasks such as fixing bugs and producing documents, slides and spreadsheets, and Haiku 5.5 for high-volume, cost-sensitive applications. Claude Code applies the models to software engineering, and Cowork brings them into everyday knowledge work. Alongside the models, the company runs safety and interpretability research and ships safeguards with each release, including cyber and biology safeguards that target a narrow set of high-risk requests.

Products and services

  • Claude models — Opus 5.5, Sonnet 5.5 and Haiku 5.5, offered through the Claude API and major clouds
  • Claude Code — Agentic coding tool for software engineering work
  • Cowork — Claude for everyday knowledge work across documents and business tools
  • Claude apps — Claude for individuals, teams and enterprises

Notable customers / partners

  • Stripe
  • Palo Alto Networks
  • Pictet
  • Spellbook
  • Impel
  • Rocket Money

Key people

  • Dario Amodei — Co-founder and Chief Executive Officer
  • Daniela Amodei — Co-founder, President and Chair
  • Krishna Rao — Chief Financial Officer

Investors

  • Altimeter Capital
  • Dragoneer
  • Greenoaks
  • Sequoia Capital
  • Amazon
  • Google