Investing.com -- Wall Street has mostly welcomed Amazon's expanded partnership with Anthropic, viewing the $100 billion, 10-year AWS commitment as a major vote of confidence in the company's Trainium chip ambitions.

Amazon shares are up 2.6% premarket following the news.

Wells Fargo analyst Ken Gawrelski noted that the $100 billion figure is a minimum commitment, estimating Anthropic could contribute $115 billion in AWS revenues between 2026 and 2028, rising to $40 billion to $50 billion annually at full deployment of a projected 5 gigawatts of capacity by 2028.

Gawrelski flagged the launch of Claude Platform on AWS as a key competitive differentiator, bringing collaboration tools previously exclusive to Anthropic's own platform, including Claude Cowork and Artifacts, to AWS for the first time.

Truist analyst Youssef Squali noted that the deal "deepens Amazon's relationship with Anthropic" and demonstrates that Trainium is gaining momentum in AI training and inference workloads.

Combined with a separate OpenAI commitment, Squali said total anchor tenant commitments now exceed $200 billion, which he believes creates upside to AWS revenue estimates in the second half of 2026 and beyond, above current consensus growth of 25% year-on-year.

BMO Capital analyst Brian Pitz was equally constructive, arguing that the long-term partnerships "justify the ~$200B of 2026 CapEx." Pitz reiterated the outperform rating and top pick designation on Amazon, with a $310 price target.

Wall Street view: Is Amazon's Anthropic deal a strategic AI win or a cost burden?

Tim Cook steps down as Apple CEO after 1,000% growth; John Ternus named successor