Anthropic
AI safety company founded 2021 by Dario + Daniela Amodei (ex-OpenAI VP Research + VP People) + other OpenAI departures. Builds Claude. Public Benefit Corporation.
Valued $61.5B (March 2025). Investors: Google ($3B+), Amazon ($8B). Focus on "AI safety" as differentiation vs OpenAI: Constitutional AI, mechanistic interpretability research. Claude (March 2023, 2 → 3 → 3.5 → Opus 4 → Sonnet 4.x) is the primary product. Computer Use (October 2024) — Claude controlling computers directly. Based in San Francisco. RSP (Responsible Scaling Policy) is a formal commitment to safety practices.