Buyer's question

How to Evaluate a SaaS Vendor with Claude From overwhelming RFP to clean decision.

Buying B2B SaaS is messier than ever — vendor decks are inflated, demos are choreographed, references are cherry-picked. A structured Claude workflow turns the chaos into a decision document. Here's how.

Short answer

Use Claude to compress the messy parts: synthesize discovery calls, normalize feature comparisons across vendors, draft reference call questions, and produce a structured scorecard. Keep the final judgment human — Claude organizes; you decide.

The 5-step workflow

Define the requirements upfront. Use Claude to help you draft a requirements doc from your team's notes. 30 minutes; precludes scope drift later.
Run discovery calls. Take real notes. Paste into a Synthesis Project to get structured summaries.
Normalize feature comparisons. Vendors describe the same thing differently. Paste each vendor's claims into Claude with your requirements doc and ask for a normalized comparison.
Draft reference call questions. Based on what's still unclear, get a targeted question list.
Produce the decision artifact. A 1-page recommendation with scoring across your criteria + risks + the chosen vendor + why.

Sample evaluation prompt

"You are a B2B SaaS buyer at [Company]. For the vendor materials and discovery notes provided, produce a structured evaluation: 1) Stated capabilities mapped to our requirements, 2) Gaps, 3) Pricing summary, 4) Implementation timeline, 5) Risks, 6) Specific questions to ask in next meeting or reference call. Be specific about uncertainty."

Reference call questions to ask

What were you trying to solve when you bought?
How long did implementation actually take vs. promised?
What's still hard about using this tool 6+ months in?
Have you considered switching? If yes, why; if no, why?
What would you tell yourself before signing the contract?

Red flags Claude can help surface

Inconsistencies between vendor claims and discovery answers.
Vague pricing or contract terms.
Feature claims that vendors can't demo on their own data.
Reference customers in different segments than yours.
Implementation timelines that don't account for your IT context.

FAQ

Can Claude pick the right vendor for me?

No. It can organize the information so you can decide. The judgment must be human.

Should I paste vendor proposals into Claude?

Yes — these are typically not confidential. Strip any of your team's sensitive notes before pasting.

Can Claude be biased by what vendors say?

Yes if you only give it vendor materials. Always include your own requirements and discovery notes as the anchor.

How long does this workflow take?

About 40-60% of the time of doing it manually. The savings compound if you're evaluating 3-5 vendors.

What about NDA constraints?

Don't paste anything covered by NDA into AI tools without an enterprise tier with appropriate data handling.