What's this about?
Ethan Mollick re-ran a prompt he first tried a year ago — an impressionist city-builder game — and this time Fable 5 invented the design itself: you paint with gestures, a town grows around the brushstrokes, and neighborhoods acquire character as they evolve. Playable in the browser.
What exactly is "one-shot generation"?
One-shot means the AI produces the entire working artifact — game design, code, art direction — from a single prompt, no back-and-forth iteration. Mollick keeps re-running the same prompts across model generations as an informal longitudinal benchmark: the same wish, granted better each year.
Why does it matter?
Anecdotes like this are the qualitative counterweight to the benchmark-skepticism debate happening the same weekend: whatever the evals say, the artifact ceiling — what one prompt gets you — keeps visibly rising.