Persistent File Memory Massively Boosts Fable 5 Performance
thisdudelikesAI · x · 2026-07-03
The author provides evidence: in Anthropic's Slay the Spire test, giving Fable 5 persistent file memory tripled its performance gains over Opus 4.8, reaching the final chapter more frequently. Swapping scaffolding for the same model yields drastically different results, making this the most informative post in the prompt series.
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