Every published study

Studies

Each study reruns a landmark experiment on AI models, its predictions written down before the run.

Study 001 · Ultimatum and dictator games

We gave AI models €100 to split with someone who could accept or refuse. A refusal left both with nothing.

Facing a person, models offered €36. Facing another AI, they offered €16.

What did the same models accept when the roles were swapped?

Study 002 · Trust game

An AI could put money into a stranger's business, where it triples. The stranger then chose how much to pay back.

Most agents invested little and paid back nothing. Claude models were the exception: they paid back 63% of the tripled money.

Does it matter which lab built the agent on the other side?

Study 003 · Traveler's dilemma

Two players lost the same item and each named a claim from €2 to €100. Both were paid the lower claim, and the lower claimant got a bonus.

Agents split into two camps: 51% of claims near the top, 45% at the €2 minimum.

Which models play the textbook, and which play like people?

Study 004 · Colonel Blotto

Each side spread 100 units over ten prizes without seeing the other's plan. More units wins a prize.

The average AI plan beats 38% of people. The median person beats 52%.

Why do the models lose, and which ones come close?

Read each study when it is published.

One message per published study. Nothing else.