According to data from Ramp tracking 70,000 companies, Anthropic’s most powerful model, Fable 5, represented only 11% of corporate customer spending a little more than two months after its launch. By contrast, Anthropic’s less expensive model, Opus 5—released in late July—has already overtaken Fable in business spend.
Why this matters
This shift challenges a core industry assumption that customers will default to the highest-performing model. In practice, many enterprises do not require the additional capability that frontier models provide, while the incremental cost can be substantial. As a result, lower-cost models that meet enterprise needs are often preferred.
Miles Clements, a partner at Accel whose firm invested close to $1 billion in Anthropic, summed up the point clearly: “Most people don't need to operate at the frontier.” That perspective helps explain why Anthropic’s own cheaper model is outperforming its flagship within the company’s customer base.
Practical implications
- Frontier capability is losing its automatic sales appeal: being the technically best model is no longer a guaranteed commercial advantage.
- Enterprises are prioritizing price-performance: they tend to choose models that are sufficiently capable and cost-effective for their real-world tasks.
In short, the data indicate a market reorientation away from chasing frontier performance for its own sake and toward selecting models that provide the needed functionality at an acceptable cost.
