Amazon has pumped an extra $4 billion into Anthropic, bringing its total investment to $8 billion while remaining a minority investor. Now, AWS is Anthropic’s primary cloud and training partner, enabling AWS customers to fine-tune the Claude AI model with their own data. Leveraging Amazon’s Trainium and Inferentia chips, Anthropic vies against AI giants OpenAI and Google in the generative AI race. Co-founders Dario and Daniela Amodei keep championing responsible AI—proving even big bucks can come with a good heart.