Garry Tan hails frontier model release days: Fable 5.2 gives every project a step-function boost

garrytan · x · 2026-11-10

Y Combinator president Garry Tan quote-shared Capy's launch of Fable 5.2, saying every one of his projects gets a "step function improvement" on frontier model release days — and he never gets tired of them.

Per Capy, Fable 5.2 targets coding and long-running, open-ended engineering work, claims SOTA coding performance, and is up to 30% faster and 20% cheaper per token than Fable 5.1. A screenshot shows Tan using it to audit his GStack Minder codebase and rank the most impactful features and bug fixes.

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