Bloomberg reported on October 29, 2026, that Anthropic was SpaceX’s largest single customer in Q3 2026. Bloomberg identified the filing’s “Customer B” as Anthropic, citing a person familiar with the matter. Infobae reported that the filing attributed 34.5% of SpaceX’s total quarterly revenue to that customer.
What 34.5% means in dollars
A 34.5% share puts the reported customer concentration at roughly a third of SpaceX’s Q3 revenue. Whats Up With Elon’s short gives $14.575 billion as the quarter’s total revenue and labels its roughly $5 billion customer figure as the channel’s own calculation. Applying the reported share to that total gives 34.5% × $14.575 billion = $5.028375 billion, or about $5.03 billion in quarter-level revenue.
Infobae separately reported an estimate of about $3.1 billion per month beginning in December 2026. That is a monthly figure for a later period; the $5.03 billion estimate is derived from the Q3 total.
What the reported compute agreements include
Infobae reported that Anthropic’s agreements cover rented AI-computing capacity at SpaceX data centers in Memphis, Tennessee, and were signed in early 2026. The reported maximum commitment is up to $120.5 billion through 2029. That figure is a ceiling, not a statement of realized spending.
NeoTeo previously covered Musk’s plan to rent out SpaceX computing capacity. Bloomberg’s reported customer ranking adds a measure of how concentrated that business’s quarterly revenue was.
Infobae also reported two contracts with 90-day termination options. One option was reported to begin in January 2027 and the other in March 2027.
