Spawn builds multiplayer game worlds with Fable-driven autonomous agents

Building a multiplayer game world with autonomous Fable-class models

Spawn lets players change multiplayer game worlds through an in-game agent called Savi. Jacob Sansbury says development is now run autonomously by a swarm of Fable-driven agents, at a model token cost above $3 million a month.

Why it matters: Spawn hands production errors straight to agents and shortens the feedback loop with hourly deploys and partial rollbacks, so autonomous coding stays tied to live incident handling.