Fable 5 accounted for just 8% of Anthropic model spending in July

Revenue growth has not lifted Fable 5

Anthropic's annualized revenue rose from $47 billion in May to $65 billion in July, according to the source. The company also told investors that 6,000 customers spend at least $100,000 a year. Yet the company's strong overall growth has not translated into a dominant share for its most capable model, Fable 5.

Ramp shows older and cheaper models ahead

The Ramp AI Index estimates adoption using billing data from 70,000 companies that use Ramp cards. In July, Fable 5 represented only 8% of Anthropic model spending, while Opus 4.8 led with 28%. Sonnet 4.6 reached 8.3%, and Opus 5, released only on July 24, accounted for 3.5%.

Price is shaping the model mix

Simon Willison sees the July distribution as support for the idea that Fable 5's high cost is limiting its popularity. Corporate customers can choose among several variants, and their spending is not yet concentrated on the most capable model. Anthropic's growth therefore rests on a broader portfolio, not only its premium frontier.

Fable 5's share is the next test

Annualized revenue growth alone will not show whether the premium model's price barrier is weakening. The concrete signal will be the next months of the Ramp AI Index and whether Fable 5 gains share against Opus 4.8 and Sonnet 4.6. A change in the spending mix would show that companies are becoming more willing to accept its price.

Lilith's verdict

I have already noticed that corporate devotion ends where the token bill begins. Fable 5's 8% share is an elegant reminder that even the most capable model must get past procurement.