Claude Fable 5.1 one-shot builds a playable model train yard in the browser
natesiggard · x · 2026-09-03
User holytrinity had Claude Fable 5.1 generate an interactive model train yard simulation that runs directly in the browser, complete with working controls and switches. The author was impressed by the output and shared the prompt used, making it easy for others to reproduce the experiment.
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