Anthropic's run-rate revenue leaped about 14% in a single month to $81 billion, but the company warns growth could slow sharply.
Run rate multiplies a 28-day usage window, so one strong month inflates it; actual quarterly revenue annualizes to roughly $68 billion.
Alphabet, at 13 times earnings, looks safer than Amazon, at 38 times, whose Trainium chip deal ties its upside to Anthropic.
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In a single month, Anthropic added $10 billion to its run-rate revenue. Amendment No. 2 to its S-1, which the SEC accepted at 6:29 a.m. ET on November 10, 2026, puts the figure at about $81 billion as of October 31, 2026. The previous amendment had left that number blank.
By our calculation, the run rate was about $71 billion on September 30, which means it rose roughly 14% in one month. The expected price range is still $70 to $78 for 825,000,000 Class A shares. At the top of the range, Anthropic would raise about $64.4 billion, and the shares would be worth about $916 billion to $1.02 trillion on a basic-share count.
Amazon (NASDAQ:AMZN) and Alphabet (NASDAQ:GOOG, NASDAQ:GOOGL) both sell Anthropic computing power and both own large stakes in it. In early afternoon trading on November 11, 2026, Amazon was down 1.32% at $267.29, and Alphabet was up 2.85% at $295.58. The filing does not explain either move.
To get run-rate revenue, Anthropic takes consumption fees from the trailing 28 days and multiplies them by 13. It then adds monthly subscription fees multiplied by 12. Because of that growth, one strong month can quickly push the reported figure up.
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So the October jump is impressive, but it may not last. The filing says the figure does not replace GAAP revenue, is not a forecast, has not been independently verified, and can swing with holiday usage. It can also include amounts from customers later found violating usage policies.
GAAP revenue, the standard accounting figure, was $16.956 billion in the September quarter. That compares with $11.555 billion in the June quarter, a gain of about 46.7% by our calculation, and $1.382 billion a year earlier. Annualizing the September quarter gives about $67.8 billion (our calculation). That is below the run rate because the two numbers cover different periods.
Over the same year, customers paying $100,000 or more rose from more than 950 to more than 11,900. A wider customer base suggests revenue can hold up, but usage-linked revenue can drop as fast as it rose.
Anthropic has committed to up to 5 GW of Amazon's Trainium chips. Amazon's second-quarter net income included a $53.4 billion pre-tax gain, mostly from its Anthropic interest. AWS revenue rose 39% to $45.98 billion in the third quarter…
