Sakana AI (Japan) released Fugu Ultra, claiming Fable 5/Mythos level performance without the export control exposure.
Reality: not one model. A coordinator routes tasks across existing models, critiques, merges. Explains the coding wins and the slow agentic runs.
Same build: Fugu Ultra cost $0.51, GLM 5.2 cost $0.03.
Did win blindfolded chess outright vs three frontier models + a 2,100 ELO engine.
Closer to GLM 5.2 than Fable 5. Full numbers: Link in bio








