Amazon shares moved modestly higher in overnight trading after the company denied that a reported restructuring of its commercial relationship with Anthropic would make AI services more expensive. Based on limited wire-style coverage available in this story cluster, the key development is not a new product launch but Amazon’s effort to calm concerns about the economics of one of its most important AI partnerships. For builders and enterprise buyers, the episode underscores how closely model access, cloud distribution, and strategic investment terms are now tied to perceived AI infrastructure costs.