In a move to deepen its commitment to advancing generative artificial intelligence, Amazon has invested another $2.75 billion in artificial intelligence startup Anthropic. Its investment now totals $4 billion.

In September 2023, Amazon made an initial investment of $1.25 billion and announced plans to invest up to $4 billion. This month’s additional investment could signal that Amazon’s collaboration with Anthropic is advancing.

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Earlier this month, Amazon announced access to what it calls its “most powerful” Anthropic AI models on Amazon Bedrock.

“We have a notable history with Anthropic, together helping organizations of all sizes around the world to deploy advanced generative artificial intelligence applications across their organizations,” said AWS Vice President of Data and AI Swami Sivasubramanian said in a March 27 news release. “Anthropic’s visionary work with generative AI, most recently the introduction of its state-of-the art Claude 3 family of models, combined with Amazon’s best-in-class infrastructure like AWS Tranium and managed services like Amazon Bedrock further unlocks exciting opportunities for customers to quickly, securely, and responsibly innovate with generative AI. Generative AI is poised to be the most transformational technology of our time, and we believe our strategic collaboration with Anthropic will further improve our customers’ experiences, and look forward to what’s next.”