SpaceX discloses that one “Customer B” accounted for 34.5% of its revenue in its last quarter, and multiple outlets identify that client as Anthropic. The filings mentioned in reports are tied to SpaceX’s financial results and raise concerns about how concentrated revenue has become around a single customer.

Across coverage, Anthropic is presented as the biggest client now, with reports saying it overtakes the US government as SpaceX’s top customer. Semafor and The Next Web focus on Anthropic’s role and the concentration risk for SpaceX’s tech customer base. Japan Times emphasizes SpaceX’s disclosure that the revenue share came from one named only as “Customer B.”

Times of India adds additional context by describing SpaceX’s AI division as turning profitable and by linking its reporting to Elon Musk’s public disagreement about a donation strategy attributed to the identified client, while also describing changes in SpaceX’s broader customer portfolio.