Amazon Acquires Anthropic Stake Expanded to Majority Ownership

Amazon has converted its previously announced 4 billion dollar minority investment in Anthropic into a majority ownership stake, according to an SEC filing. The deal values the Claude AI maker at about 18.2 billion dollars while preserving operational independence. Anthropic CEO Dario Amodei said the structure protects the company's long-term benefit mission.

The agreement makes AWS the exclusive cloud partner for Anthropic's largest training and inference workloads. Regulators in the UK and EU have opened preliminary reviews, while US authorities said they are monitoring the situation.