I trained a 1.57B-parameter Dreamer 4 World Model from scratch for under $150

A developer trained a 1.57B-parameter Dreamer 4 World Model from scratch for under $150, building on Genie's architecture. The first attempt produced visually convincing video but with no usable control response; a reworked version added proper action conditioning. The result demonstrates that interactive world model training is now within reach of individual researchers on a modest budget.