The companies announced an initial $1.25 billion investment in September, and said at the time that Amazon would invest up to $4 billion. The deal was struck at the AI startup's last valuation, which was $18.4 billion, according to a source. Over the past year, Anthropic closed five different funding deals worth about $7.3 billion — and with the new Amazon investment, the total exceeds $10 billion. News of the Amazon investment comes weeks after Anthropic debuted Claude 3, its newest suite of AI models that it says are its fastest and most powerful yet. But multimodality, and increasingly complex AI models, also lead to more potential risks.

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Persons: Claude, Anthropic, OpenAI's, what's, Swami Sivasubramanian, OpenAI's ChatGPT, OpenAI, Microsoft's OpenAI, Anthropic's Claude, Daniela Amodei, We've, Tesla, Brendan Burke, Bill Gurley, Gurley, Microsoft's, Lina Khan Organizations: Amazon, Google, CNBC, Fortune, Nvidia, Microsoft, Apple, U.S . Federal Trade Commission Locations: San Francisco, Anthropic, OpenAI