Ramp Data: Fable 5 Is Only 6% of Anthropic Tokens and 11.4% of Anthropic Dollars a Month After Launch — and It Isn't Rising
EconLab / Ramp AI Index (corroborated by r/ClaudeAI 488up/255c)·high signal
The Ramp/EconLab AI Index for August 2026 shows Anthropic's flagship Fable 5 capturing just 6% of tokens purchased and 11.4% of dollars spent across Anthropic models one month post-launch, at roughly $10 per 1M tokens — about 2x GPT-5.6 Sol. By contrast GPT-5.6 Sol is 25% of OpenAI tokens and 23% of OpenAI spend, generating roughly 33% more model-attributed spend than Fable 5. The r/ClaudeAI thread asking "Why aren't businesses using Fable 5?" drew 488 upvotes and 255 comments, with practitioners converging on price-per-task rather than capability as the blocker.