❯ Ramp Data: Fable 5 Enterprise Spending Stalls at 11%, Overtaken by Cheaper Opus 5

BILLING DATAPayments company Ramp analyzed bills from 70,000 businesses and found that Anthropic’s flagship model Fable 5, released this June, accounted for only 11.4% of customer spending on Anthropic tools two months later — with its token-usage share even lower, at just 6%. Claude Opus 5, launched in late July at a lower price, has already overtaken Fable 5 in enterprise spending. The Financial Times reports the data was provided exclusively by Ramp.

PRICE GAPThe gap is plain: Fable 5 runs roughly $10 per million tokens, about twice the price of GPT-5.6 Sol. Enterprise buyers would have to pay double for performance gains that are hard to quantify in day-to-day work, and after running the numbers, most companies chose not to pay. Cheaper alternatives are squeezing in from both sides at once — Chinese open-weight models and Anthropic’s own Opus 5.

CORROBORATING EVIDENCEVercel’s AI gateway data points the same way: open-weight models now account for 29% of tokens on the gateway, up from 11% in April — nearly a threefold jump in two months — while consuming less than 4% of spending. Volume is on the open side, money on the closed side; that divergence is what “good enough” looks like on a ledger.

STAKESFrontier labs need to revisit the pricing assumption itself. The willingness to pay a premium for top performance is not unlimited — it has a ceiling, and Fable 5 just hit it. More awkward for Anthropic: half the pressure pushing it down comes from its own Opus 5 — the flagship’s premium headroom has been eaten by the sub-flagship. Enterprise tech leads, meanwhile, have been handed a ready-made bargaining chip: they can bring this data to the next renewal cycle and squeeze API pricing.

▪ SIGNALEnterprises accept the strongest model, but not its price tag. Between performance leadership and revenue sits a quantifiable price gap.