Amazon and Anthropic are strengthening their ties once again, with steep financial commitments made on both sides. Today, Amazon announced that it will invest $5 billion in the AI company, along with as much as $20 billion in additional payments if certain milestones are met. This news follows the initial $4 billion investment Amazon made in Anthropic in 2023 and a second $4 billion round from 2024.

On Anthropic’s side, it has committed to continued use of Amazon’s custom Trainium silicon for its AI models. The latest agreement will see Anthropic promising to spend more than $100 billion on AWS technologies over the coming decade. It will secure up to 5 gigawatts of current and future chip capacity for training and powering its models. Their partnership is also bringing Anthropic’s Claude platform to Amazon Web Services customers within the AWS portal, removing the need for additional credentials.