X post · by Trinay Hari
A 26-sheet plan set in 2.9 seconds
Civil and building plan sheets classified for half a cent.
Trinay Hari
@hari_trinay
Built a construction plan-set classifier with Jev. Proq turns civil and building plan sets into bills of materials using an LLM pipeline we built on GPT-4.1. Jev classified an entire 26-sheet plan set in 2.9 seconds for $0.0052. It matched GPT-4.1 and GPT-6 Astra on 100% of sheet-level classifications while running 17–21x cheaper and 5x faster than our production pipeline.
Sep 19, 2026 · 18 likesOpen on X
Proq turns civil and building plan sets into bills of materials with an LLM pipeline on GPT-4.1. Trinay Hari reports Jev classified a whole 26-sheet plan set in 2.9 seconds for $0.0052. He says it matched GPT-4.1 and GPT-6 Astra on 100% of sheet-level classifications, while running 17 to 21 times cheaper and five times faster than their production pipeline.
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