# Effective Altruism

The Great Schism: How a Silicon Valley Betrayal Birthed the World’s Most Bitter AI Rivalry

The intense rivalry between OpenAI and Anthropic is rooted in a 2020 personal fallout between Sam Altman and the Amodei siblings. This conflict has evolved into a multi-billion-dollar struggle between two divergent worldviews: rapid AI democratization versus cautious, safety-first gatekeeping.