Marketing Vendor Evaluation Report Prompt

Business Updated August 20, 2026 by GenPrompto
Prompt
Help me structure a vendor evaluation report comparing [number] marketing vendors for [type of service, e.g. "paid social media management"]. I'll describe what I know about each: [describe each vendor's pricing, services, and your impressions]. Organize it into: (1) a summary comparison table, (2) strengths and weaknesses per vendor, (3) a recommendation with reasoning. Be honest about gaps in what I've provided rather than filling them with assumptions.

What this does

Structures a vendor comparison report from what you actually know about each vendor, rather than generating generic vendor-evaluation boilerplate.

Variations

Two more versions, ready to copy on their own.

Quick Comparison Table Only
Create a quick comparison table for [number] marketing vendors for [type of service]. Columns: vendor name, monthly cost, core service, one key strength, one key gap. I’ll describe each: [describe each vendor briefly]. Keep it to a table only, no narrative report.
Recommendation-Focused Version
Based on these [number] marketing vendor options for [type of service]: [describe each vendor], recommend the single best choice for a [describe your specific situation, e.g. “small team, limited budget, needs fast turnaround”], with your reasoning in 3-4 sentences.

Who this is for

Marketing professionals comparing multiple vendors who need to structure their findings into a clear, presentable report — particularly useful for Business Professionals.

Example Output

“| Vendor | Monthly Cost | Core Service | Notable Strength | Notable Gap |
| Vendor A | $2,500 | Paid social management | Strong reporting dashboard | No dedicated account manager |
| Vendor B | $3,200 | Paid social + creative | Dedicated account manager | Higher cost, longer contract |”

Real vendor data required, Gaps flagged not assumed, Tested on Claude Sonnet 5, Aug 2026.

The quality of this report depends entirely on the real detail you provide about each vendor — treat it as a structuring and comparison tool for your own research, not a source of vendor information itself.

Tips for better results

  • Provide real, specific details about each vendor, even incomplete ones — the report is only as useful as the actual information behind it.
  • The "be honest about gaps" instruction matters — without it, the model sometimes fills missing information with plausible-sounding assumptions rather than flagging what you still need to find out.
  • Ask for the summary table first as a standalone output if you just need a quick comparison for a meeting, before generating the full report.

What didn’t work as well

A version without the "be honest about gaps" instruction filled in a missing vendor's pricing with a plausible-sounding but entirely invented number — adding the explicit instruction to flag gaps instead produced a report that correctly marked that field as unknown.

FAQ

What if I don’t have complete information on every vendor?

Provide what you have — the prompt is built to flag missing information explicitly rather than guess, so incomplete input still produces an honest, useful report.

Can this compare vendors across a different category, not just marketing?

Yes — swap the service type and vendor details for any category (software, agencies, contractors) and the same structure applies.

Does this work for a formal presentation, not just internal notes?

Ask for a more formal tone and structure explicitly if it’s for a presentation or stakeholder document, rather than internal working notes.

Can I add specific evaluation criteria beyond cost and service?

Yes — list any additional criteria (contract flexibility, industry experience, client references) and ask for them included as additional table columns or discussion points.

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