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surprise

An agent that predicts what actions will do, notices confident mistakes and rewrites its explicit model of the world.

Source screenshot of surprise
SOURCE SCREENSHOT · source ↗ · captured 2026-09-22Full screenshot ↗

Maker-reported (not independently measured by JevMade): 3D playroom curriculum, 164 predictions: Brier 0.116 for the hand-written rules, 0.207 for Jev zero-shot, 0.126 for Jev with the learned rules in context (author-reported, generated 2026-09-20) · One playroom curriculum run with Claude Fable 5.1 accommodating: 123 predictions, 82% accuracy, Brier 0.137, five concepts acquired (author-reported) · Jev on that workload: 3,398 calls, mean 389 ms under concurrency, 1,437,895 input tokens, $0.060 total (author-reported)

Primitives
noul
Platform
TypeScript
Added
Project created
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0 · snapshot 2026-09-22

Source checked 2026-09-22 — opened the primary source directly.