Nextbigfuture iconNextbigfutureSep 1, 2026

Anthropic Fable 5.1 and Mythos 5.1 Are Better and 45% Cheaper

Anthropic released FAble 5.1 and Mythos 5.1 and they continue to get better at agentic coding and scientific research. Fable 5.1 will cost an estimated 25% less than Fable 5 for typical workloads, wherever usage is billed by token.

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Anthropic released FAble 5.1 and Mythos 5.1 and they continue to get better at agentic coding and scientific research.

This is because we're reducing our pricing on cache reads (where the model reads inputs that...

Fable 5.1 will cost an estimated 25% less than Fable 5 for typical workloads, wherever usage is billed by token.

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Anthropic released FAble 5.1 and Mythos 5.1 and they continue to get better at agentic coding and scientific research. Fable 5.1 will cost an estimated 25% less than Fable 5 for typical workloads, wherever usage is billed by token. This is because we're reducing our pricing on cache reads (where the model reads inputs that...

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