Matt Shumer's Fable 5.2 review: smarter than me, runs a voxel engine on a MacBook
mattshumer_ · x · 2026-11-10
Matt Shumer published a long-form review of Fable 5.2, calling it a level beyond any model he's used:
- Capability: feels like talking to an almost-omniscient being; he'd trust it to autonomously run large parts of a company
- Usage tips: low/medium effort suffices for nearly everything; extra high only for the thorniest problems
- Best pattern: one agent owning an entire project (slow but effective); a single agent built a Hogwarts×Fortnite Battle Royale with almost no steering
- Design: the first model capable of genuinely good design, but only after feeding it many examples of your taste
- Downsides: overly proper "hall monitor" behavior, still slips into Claude-speak, poor sense of priorities
- Highlight demo: the voxel engine he chased for a year — real destruction physics, built from scratch, runs on his MacBook
Verdict: a bigger jump than Fable 5 → 5.1.
Related event: Shumer Reviews Fable 5.2: Smartest Model Ever, But Heavy Guardrails(3 posts)→
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