Anthropic builds large language models—primarily the Claude family—and sells access to them via a consumer app (Claude.ai), an API used by developers and enterprises, and purpose-built products like Claude Code (an agentic coding assistant). The company was founded in 2021 by former OpenAI researchers who prioritized AI safety as a first-class engineering constraint, not an afterthought. Enterprises pay per token via the API or through cloud marketplaces (AWS Bedrock, Google Cloud, Azure). Revenue is roughly 80% enterprise-driven, with more than 300,000 business customers and over 1,000 accounts each spending more than $1 million per year. Eight of the Fortune 10 are customers. The product positioning centers on reliability, interpretability, and safety—an explicit differentiation from less guardrailed rivals—making Claude particularly attractive to regulated industries (finance, healthcare, government). With a confidential S-1 filed June 2026 and an October Nasdaq listing reportedly targeted, Anthropic is the most likely near-term AI mega-IPO.