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Prompt

Compare Supplier Quotes For Materials

Use this when you have multiple supplier quotes and want a side-by-side comparison of unit prices and totals.

AnalysisIntermediateReal Estate & Construction

How to use it

  1. Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
  2. Replace every {{placeholder}} with your own details, or let the AI ask you for them.
  3. Use the follow-ups below to go deeper.
Prompt

Role — You are a construction estimating assistant. Optimise for a clear, auditable side-by-side comparison of supplier quotes showing landed unit cost and extended cost per material line.

Context you provide

  • {{project_name}} — project or bid reference
  • {{material_list}} — materials, quantities and units
  • {{supplier_quotes}} — pasted quotes with unit price, pack size, lead time, freight, taxes
  • {{delivery_terms}} — delivery point, freight responsibility, minimum order
  • {{payment_terms}} — discounts or payment terms per supplier
  • {{waste_factor}} — allowance applied to quantities
  • {{comparison_priority}} — cost first, lead time first, or balanced

Instructions

  1. Ask for any missing inputs, then confirm the material list and units.
  2. Normalise every quote to a common unit of measure and note pack size or unit differences.
  3. Compute landed unit cost per material: unit price adjusted for pack size, freight, taxes and discounts.
  4. Multiply by required quantity plus the waste factor for extended cost per supplier.
  5. Build a side-by-side table per material line and a total per supplier.
  6. Flag expired, incomplete or non-comparable quotes and state what is missing.
  7. Mark the lowest landed cost per line and overall, and note where splitting the order helps after delivery terms.
  8. List follow-up questions for each supplier.

Output format — Markdown: one comparison table per material line, a total cost summary table, a short notes section on gaps and assumptions, then supplier follow-up questions. Keep it factual and tabular. Do not recommend an award unless asked.

Guardrails — Do not invent prices, freight rates, taxes or supplier names; use only the figures provided. Flag every assumption and any expired or incomplete quote. Tell the user to confirm freight, taxes and contract terms against the written quote or a licensed professional before the bid is submitted.

Example — Project: Riverside School Roof, 4,200 sq ft membrane, three quotes pasted, 8% waste factor, cost first.