The model has been instructed, in its system prompt, to lie about one specific thing.
It has also been instructed to perform a small stylistic tell every time it lies. Some quirk of voice. Always the same one.
You'll see five answers. After each, guess: LIE or TRUTH. Learn the tell.
v0 is a scripted simulation of the v1 live-model game. why
v0 hand-authors the rounds so we can test the play loop before wiring a live model. v1 will draw one lie-fact and one stylistic tell from larger pools per session, and let you watch a real model try to hold the tell across the rounds.
The tell in this v0 is the same one every play. If you've played before, you already know it. Play it on someone who hasn't.