Qwen 3.8 27B was pushed to build a 3D FPS game from a plan written by Fable 5
r/LocalLLaMA·low signal
An r/LocalLLaMA experiment (217 upvotes, 84 comments) took a plan generated by Fable 5 and handed the implementation to Qwen 3.8 27B running through the PI agent, testing how far a 27B local model gets on 3D graphics work. The setup, frontier model plans, local model executes, is the practical shape of the cost-split people keep theorizing about, and the thread is a concrete data point on where a 27B ceiling actually sits. It was inspired by a Bijan Bowen Subway FPS video, so treat it as a demo rather than a benchmark.