Anthropic says Fable 5.1 will cost an estimated 25% less than Fable 5 for typical workloads and up to 45% less for highly agentic work (Zac Hall/9to5Mac)
The price cut comes from a 75% reduction in Fable 5.1 cache-read costs.
Anthropic says input and output pricing stays the same as Fable 5, but cache reads fall to $0.25 per million tokens. That lowers estimated real-world costs by about 25% for typical workloads and up to 45% for highly agentic ones. Fable 5.1 is generally available, alongside Mythos 5.1 for trusted partners with added safeguards. Techmeme's note
Anthropic says input and output pricing stays the same as Fable 5, but cache reads fall to $0.25 per million tokens. That lowers estimated real-world costs by about 25% for typical workloads and up to 45% for highly agentic ones. Fable 5.1 is generally available, alongside Mythos 5.1 for trusted partners with added safeguards. Techmeme's note
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