Sales rep builds proposals from call comments with GPT and Gemini

What they did

The rep uploads call transcripts so GPT can score each call and suggest next steps and follow-ups. For proposals, it helps them build from templates using the client's own comments from the call. They then move the result into Google Slides, and Gemini writes it up on the company template.

How it went

They say many clients commented over the past three months that they had never received such an accurate proposal, and their close rate is up 30%. Each proposal takes about 10 minutes.

"in the past 3 months have had so many clients comment that they've never had such an accurate proposal meeting their needs put in front of them and close rate is up 30% takes me about 10 minutes to produce"

— u/ClinTri-Boss

Worth knowing

• Self-reported close-rate figure from one rep, with no baseline given.
• Price check: ChatGPT: free plan; Go: US$8/month (checked Nov 1, 2026); Google Gemini: free plan; Google AI Plus: US$4.99/month (checked Nov 1, 2026).

Paying for ChatGPT? See cheaper ChatGPT alternatives.

Try it yourself

Paste this into a chatbot, then add your own details underneath.

Here is our proposal template and the transcript of my discovery call. Fill the template using the client's own words for their problems and goals, keep every claim tied to something they said, and list anything I still need to confirm with them.

More people who did this

• u/SensitiveExperience6 (Reddit, Jul 31, 2026): Built a deck builder that takes a logo and call transcript and makes a custom intro deck. Says it saves 3-5 hours a week. Tool not named.
• u/Jutton (Reddit, Oct 14, 2026): Has Claude build a one-deal web page from the transcript, notes and pricing instead of a deck, then sees when the buyer opens it.

Original post

See u/ClinTri-Boss's original post on Reddit → (Jul 31, 2026)

Filed under Sales & Leads hacks