I really love this use case: personalized product demos

November 11, 2025

I really love this use case: personalized product demos.

There are at least three things this approach to building realtime AI experiences unlocks:
- Perfect lookup and perfect recall. Demonstrate any part of a complex product; go down any path with me; if I only have a few minutes, but I get totally engaged, I can come back later and pick up exactly where we left off.
- Removes people as the bottleneck for this kind of white glove experience. Interactive, conversational, engagement isn't gated anymore by the scarcity of someone who is really good at the product demo being available!
- I would rather get this demo from an LLM than from a person. A *lot* of people feel this way. We see this in the NCP and survey results from our customers building all kinds of realtime agent use cases. I worry that I'm taking up too much of someone's time. I don't always want to spend a bunch of time talking to someone I don't know. I can ask any question without feeling like I should have known the answer.

Big, big congratulations to the @karumihq team for their innovative work.

Y Combinator@ycombinator

Karumi (@karumihq) is an AI demo agent that makes product demos scalable — it talks, clicks, and personalizes every walkthrough, 24/7.

If you're interested in building realtime AI applications, come to the voice AI meetup (in person or via live stream) on Wednesday^[1]