Anthropic releases Claude Fable 5.1 and Mythos 5.1, cutting cache read prices by 75%
THE SO WHAT
A 75% cut on cache reads plus a 2x jump on a scientific benchmark makes long-context, research-style workloads economically viable where they weren’t last quarter. If you shelved projects due to context costs, it’s time to re-run the math — especially for retrieval-heavy and analysis pipelines.
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