Anthropic's Fable 5, the company's most advanced AI model, has seen limited corporate adoption, according to sales data from financial services provider Ramp. In its first month after launch, Fable 5 accounted for about six percent of tokens purchased from Anthropic, representing 11.4 percent of total model-related spending. This contrasts sharply with OpenAI's GPT-5.6 Sol, which captured 25 percent of tokens and 23 percent of spending. Fable 5 generated only about 75 percent of the revenue that GPT-5.6 Sol produced, despite being significantly more expensive per token. Ramp noted that the data sample for Fable 5 comes from its proprietary token spend management product and skews toward tech companies, suggesting actual adoption may be even lower. The model costs about $10 per million input tokens and $50 per million output tokens, roughly twice as much as GPT-5.6 Sol or other Anthropic flagship models. Ramp economist Ara Kharazian attributes the slow uptake to Fable 5's price, arguing that the extra performance may not justify the cost for many use cases. The data does not suggest that a Fable 5-class model represents the upper limit of what companies would pay for AI, but rather highlights the difficulty in measuring the value of performance gains in daily operations. Despite skepticism about paying top dollar for premium models, total AI spending continues to rise, with the top 1 percent of U.S. companies spending a median of $7,400 per employee on AI in July. However, willingness to pay for performance gains that are hard to quantify appears to have plateaued, according to Ramp. These trends are concerning for the AI industry, which relies on fast-growing revenue from increasingly powerful models.
Source: thedecoder
