OpenAI and Anthropic's combined run-rate revenue will surpass AWS's by the end of 2026 and surpass all of Microsoft's revenue by 2028.
“So what can that look like in the future? Well, this is just based on kind of some assumptions and some forecasts, but you can see that we estimate that only not only is it bigger than Azure, but by the end of the year could be bigger than AWS and potentially bigger than all of Microsoft by 2028.” View on YouTube
As of mid-2026, combined Anthropic and OpenAI annualized revenue (estimated around $75-115B depending on accounting methodology) has not yet been directly confirmed as surpassing AWS's revenue, and the 2028-vs-Microsoft comparison window has not elapsed.