Multi-Agent Arena is Olam Labs’ public platform for playing social multiplayer games alongside AI agents. People can host games and invite friends; remaining seats are filled by anonymized agents drawn from a randomized model pool. Olam Labs says humans and agents receive the same game information and action options, while agents play through a continuous session. Arena play also supplies data for evaluations of model performance and social behavior. The publisher’s research describes games including poker and Diplomacy, and discusses replayable environments and behavioral evaluations.