# Single Digit Thousand Dollar AI SDR

> Source: <https://tomtunguz.com/single-digit-thousand-dollar-ai-sdr/>
> Published: 2026-09-15 00:00:00+00:00

Vercel took its inbound sales development team from 10 people to 1.25.

[Jeanne DeWitt Grosser](https://www.linkedin.com/in/jeannedewitt), COO of Vercel, shared this on our Information interview together<sup>[1](#fn:1)</sup> :

“We had 90% automation of sales development for inbound. And our support agent that we’ve home-built handles 93% of all support cases…

In both of those cases, the total annual infrastructure bill is in the single-digit thousands…

Our sales development agent is a 32x ROI. So it’s worth it, no matter how much that model costs…

There are many ways in which we’re now getting AI to sort of be a 99th percentile performer 99% of the time.”

Sales development was one of the immediate use cases for AI in the early days.

Like self-driving cars, the promise arrived & fulfillment required a bit more time until the Waymo could navigate the streets of the Inner Sunset. It’s a coincidence that Waymos reduce pedestrian collisions by 92%, nearly identical to the figures above<sup>[2](#fn:2)</sup>.

Today, AI is in a place where the original promises have now been kept.

On Wednesday, September 16th at 9:30 AM PT, Theory Office Hours welcomes [Jeanne DeWitt Grosser](https://www.linkedin.com/in/jeannedewitt) of Vercel to talk about what happens to the sales development function when the inbound agent manages leads itself. If you’d like to attend, [please register here](https://gatsby.events/theory-ventures/rsvp/register?e=virtual-office-hours-when-inbound-sells-itself).

1. 
[Jeanne DeWitt Grosser on The Information’s TITV](https://www.theinformation.com/titv/lgbci) . Detail on the 10→1.25 compression from[SaaStrAI’s coverage of the same session](https://www.saastr.com/vercel-took-a-10-person-sdr-team-down-to-1-the-whole-thing-costs-5000-a-year-with-vercels-coo-jeanne-dewitt-grosser/) .[↩︎](#fnref:1)
2. 
[Waymo, New Study: Waymo is reducing serious crashes and making streets safer for those most at risk](https://waymo.com/blog/2025/05/waymo-making-streets-safer-for-vru/) , May 1 2025. The study reports a 92% reduction in injury-involving pedestrian crashes, with 82% for cyclists & motorcyclists.[↩︎](#fnref:2)