The job: Three suppliers send three differently laid-out quotes. Comparing them properly means hunting through each one for the price, what’s included and the small print.
What AI actually does here
- Extracts the same fields from every quote into a single comparison table.
- Highlights what each one leaves out, and terms such as minimum periods, auto-renewal and price-review clauses.
- Drafts clarification questions to send to each supplier.
Tools to look at
- General assistants (ChatGPT, Claude, Gemini) with document upload
- Google NotebookLM for comparing several long documents
Named tools are examples, not endorsements. We have no paid relationships with them at the moment; see our disclosure.
What you need first
- The quotes as text or PDFs, with any confidential pricing handled in line with the supplier’s terms and your tool’s data settings.
- A list of what matters to you (price, delivery, support, notice period) so the comparison is on your terms.
- A person to read the actual contract for anything significant. AI extraction can miss or misread clauses, and this isn’t legal advice.
How to measure ROI
- Time to produce a comparison, before and after.
- Hidden costs or terms caught before signing.
- Savings agreed after sending the clarification questions.
Run the numbers in the ROI calculator →
What the evidence says
No statistics cited. Prompting guides from the major AI providers recommend giving the model the source material and asking it to use only that material, which is the approach this prompt takes.
Ready-to-use prompt
Replace the [BRACKETS]. Only paste data you’re allowed to share with the tool you’re using.
View promptI'm comparing quotes from [N] suppliers for [WHAT YOU'RE BUYING].
I'm comparing quotes from [N] suppliers for [WHAT YOU'RE BUYING].
What matters to us, in order: [e.g. total 12-month cost, delivery time, support hours, notice period]
QUOTE A: """[paste]"""
QUOTE B: """[paste]"""
QUOTE C: """[paste]"""
Using ONLY the text above:
1. Build a table with one column per supplier and rows for: headline price, total first-year cost (show working), what's included, what's excluded, minimum term, notice period, auto-renewal, price-review clauses, payment terms.
2. Write "NOT STATED" wherever a quote doesn't say, and quote the exact wording for any contract term.
3. List clarification questions for each supplier.
Don't recommend a supplier. This is not legal advice.Sources
- OpenAI, Prompt engineering guide Vendor documentation
- Anthropic, Prompt engineering overview Vendor documentation
- Google NotebookLM (product page) Vendor page
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