Fable 5.2 works all weekend unattended: video editor built in 3 days
every · x · 2026-11-10
- Every says Fable 5.2 can work all weekend unattended — but getting value from it requires changing how you work.
- Kieran Klaassen started building a video editor on a day off; three days later Everycut was live with editing, VFX, audio mixing, and an AI agent operating it. A week later the whole company demoed with it.
- @hammermt fed it 1,400 Slack messages and notes from 127 meetings; without him outlining first, it produced a cited account of his thinking, flagged 38 self-contradictions, and made an explainer video.
- 6 of 7 testers gave it "gold". Tradeoffs: slow, long runs burn tokens; several still prefer Opus 5.5 for interactive daily work. Fable shines on well-defined, bounded long tasks.
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