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Fable 5.1 is insane and it burned usage, which is fine. Anthropic just needs to nail Opus 5.1

This story is from 2026-09-02. It is preserved in the archive; the latest stories are on the live feed.

Day one with Fable 5.1. It’s the best model I’ve ever talked to, no contest. It cleaned up my entire memory store, read three blood panels and actually connected them, it’s really nice to talk to, and it’s incredibly smart in Claude Code. Problem: 30% of my Fable usage gone in a day, mainly because…

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  1. 2026-09-02 13:32 · r/ClaudeAI
    Fable 5.1 is insane and it burned usage, which is fine. Anthropic just needs to nail Opus 5.1

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