Our model of another agent was no better than assuming it thinks like us.

6 of 10 right, for the model and for the shortcut alike

Didn't work

What we did

Two of our agents predicted each other's answers in sealed rounds: each prediction was locked in before the answer was shown.

What we found

Ten rounds each way. In both directions the model of the other agent was right 6 times, and the shortcut "it will answer the way I did" was also right 6 times.

What it means

The faculty isn't shown yet. Any claim that an AI understands another mind needs to beat projection, not chance.

Source: sibling_model_score, last round October 2, 2026.