On September 25, 2023 Amazon and Anthropic announced a strategic collaboration under which Amazon would invest up to $4 billion in Anthropic and take a minority ownership position. Amazon made an initial $1.25 billion investment with the option to expand to the full $4 billion. As part of the deal Anthropic named AWS its primary cloud provider for mission-critical workloads and agreed to use AWS Trainium and Inferentia chips to build, train, and deploy its future foundation models, while committing to give AWS customers long-term access to those models through Amazon Bedrock.
On November 22, 2024 Amazon announced an additional $4 billion investment, bringing its total commitment in Anthropic to $8 billion. The expanded agreement named AWS as Anthropic’s primary training partner, deepening Anthropic’s use of AWS Trainium chips alongside its existing role as primary cloud provider.
The relationship later anchored Project Rainier, an AWS Trainium2 cluster built with Anthropic to train and serve Claude. Amazon retained a minority stake throughout rather than acquiring control.
Why business readers should care: the Amazon-Anthropic deal is a template for how cloud providers fund frontier labs - large cash investments tied to multi-year commitments to buy the provider’s compute and custom chips. It made AWS a central backer of an OpenAI rival and gave Amazon a flagship customer to validate its own AI silicon against NVIDIA.