#0012 square-lantern medium
gpt-5.4-mini · scaffold-assembly-v1
CaSS 0 BOM 0 Scope 0 Build —
Model did not converge
model produced a non-conformant assembly (assembly instance counts must exactly match final_bom.parts quantities)
Task brief
Design a small square LEGO lantern: a 4×4 stud closed base, four vertical walls 5 bricks tall enclosing a hollow interior, a 4×4 cap on top, and a window opening (1×2 stud-tall) in each of the four walls so a light inside would shine out. Use dark grey for the frame. Output a BOM.