Amazon is deepening its cooperation with Anthropic and will add an additional $4 billion investment to the company. In September of this year, Anthropic, an artificial intelligence startup, was seeking a new round of financing with a valuation of up to $40 billion. Anthropic was founded by former OpenAI executives in 2021 and focuses on creating interpretable, secure, and controllable artificial intelligence systems. The company's flagship AI model, Claude, operates based on "Constitutional AI," which uses predefined principles to guide its output, avoiding some erroneous or discriminatory output reactions.