BrickAGI benchmark

models / gpt-5.4-mini / task 0018

#0018 small-lighthouse stretch

gpt-5.4-mini · scaffold-assembly-v1

CaSS 0 BOM 0 Scope 0 Build —
← 0017 small-house 0019 garden-shed →
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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 LEGO lighthouse: a square 6×6 stone-grey base 2 plates tall, a circular round-brick tower at least 12 bricks tall using 2×2 round bricks (red and white alternating bands), a square railed observation platform at the top, a glass-look "lamp room" enclosure on top of the platform with trans-clear elements, and a small cone roof. Output a BOM.