Founder's hands-on take: Fable 5.1 'feels like a real SWE, not an intern'

i4858i · reddit · 2026-09-04

A self-taught early-stage founder recounts his journey from ChatGPT copy-paste coding to Antigravity, Claude Code, Opus, and now Fable 5.1. Burning $120 in promo credits on Fable + Sonnet, he got a complex API integration one-shot. He describes Fable 5.1 as feeling 'like an actual SWE, not an intern' — first drafts he cannot break — and asks whether upgrading to the x20 plan specifically for Fable 5.1 is worth it versus Opus.

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