{"success":true,"models":{"fast":{"name":"U2-Net","desc":"Fastest (~1-5s) — general use","license":"MIT"},"quality":{"name":"BiRefNet-lite","desc":"High quality (~5-8s CPU) — products/objects","license":"MIT"},"hair":{"name":"BEN2","desc":"Best for hair & portraits (~10-15s CPU)","license":"MIT"},"best":{"name":"BiRefNet","desc":"Best quality — products/objects/portraits","license":"MIT"}}}