Same butterfly prompt: GPT-6 and Fable 5 independently chose the same name

justin_hart · x · 2026-09-04

A user ran the same butterfly prompt on OpenAI's new GPT-6 Astra and got a screenplay—with a name identical to what Fable 5 chose three months ago, despite no way of knowing. An odd convergence worth noting about how models respond to the same prompt.

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