AI Interfaces Of The Future | Design Review

AI is dramatically changing the way we interact with software. So for this episode of Design Review, YC General Partner Aaron Epstein sat down with Raphael Schaad, the founder and designer of Cron (now Notion Calendar), to critique some groundbreaking AI user interfaces. Together they’ll review a wide variety of examples, from agents and adaptive UI to video prompts and realistic voice APIs, all in an effort to get a glimpse of how AI is changing the future of software.

Thank you to these companies for volunteering*:

*Some of the featured websites may be updated between the time we film and publish

00:00 - Intro
01:45 - Vapi
04:57 - Retell AI
08:42 - Gumloop
13:33 - AnswerGrid
19:29 - Polymet
26:41 - Zuni
30:42 - Argil

[chapterme]

Chapters (Powered by ChapterMe) -
00:00 - Coming Up
00:27 - Intro
01:24 - VAPI: Voice AI for Developers
02:54 - Voice interaction with latency and developer focus
04:36 - Retell AI: Boosts call operations
06:03 - Latency, robotic voice, transcript possibilities
07:55 - AI agents perform tasks autonomously
08:21 - Gumloop: AI automation with visual workflows
10:07 - Powerful Canvas tool
11:59 - Template for learning AI agents
13:13 - AnswerGrid
16:57 - AI agent source validation and trust
19:08 - Polymet: AI product designer
20:00 - Intermediate dashboard with animated messages
23:47 - Feedback process iteratively, preserve design consistency
25:17 - Adaptive AI
26:21 - Zuni: Builds smarter email apps for Founders
26:49 - Email confirmations with Zuni
27:10 - Interfaces suggest email responses based on content
29:02 - Keyboard shortcut
29:41 - Design challenge with hot keys
30:22 - Argils: voice-based video production
33:37 - Iterative human machine collaboration interface
34:58 - Futureproofing AI with groundbreaking interfaces
36:04 - Outro

[ReidKimball]

Perfect timing! Regarding latency, I believe Don Norman in The Design of Everyday Things talks about how it isn’t how responsive the app is to user input that matters most, but consistency and setting expectations. I think for voice apps and prompts using extended thinking models, as long as the UI communicates to the user what is happening and why users will be OK with slower responses if the output is valuable to them. In the example of the voice only demo, perhaps as it’s generating a response a sound is played letting users know it’s working on the request. Low latency is less important as long as users know their prompt is being processed.

[LaptopHomesteader]

I didn’t see anything in the UI here that was new. Video games are really incredible UI systems and they blow all of this out of the water.

[bamboleo]

I love design reviews as a product designer from small city, keep it coming!

[stevefeuerstein]

Rarely have I encountered such effective, engaging and clear communicators as Aaron and Raphael. Richard Feynman must be smiling.

[babacar.wane.]

My mind actually blowing with all the possibilities we can do with these tools

[iamMurfis]

More of these please. What a wonderful series 🙏

[buildwithIan]

Hey! VAPI user here - it actually does pause if you interrupt it, theres a setting that allows you to enable that, maybe they disabled that for the demo or this could be recorded before they may have released that feature

[einsteinsapples]

is this just an ad for yc backed companies?

[imvikasraj]

I'm a simple man. Whenever I see Raphael in a video, I just click.

[Shoaib-dkj]

Argil, Zuni, Gumloop! Keep it up. Keep building amazing products.

[NitinChoudhary-tjlz]

Chapters

0:00

Intro

1:45

Vapi

4:57

Retell AI

8:42

Gumloop

13:33

AnswerGrid

19:29

Polymet

26:41

Zuni

30:42

Argil

[bricelee]

i'm super interested in this topic! the interface in the next decade is going to be so different from what we see now for sure!

[devsmap]

Wow this is so useful to us at the moment. Sharing to Central Asia developers community in Kazakhstan. Thank you bros!

[DarrellaaS]

6:59 I find calls with support centers based across the world can experience delays in conversations. This due to the IP routing of calls across the internet. So this AI demo still felt like that.

[prajjwalyadav]

Great Video.. looking forward to more such review nuggets

[MandarKarekar]

This is amazing, thanks for sharing great information

[JetSoftProHQ]

The way AI interfaces are evolving is wild—adaptive UI, video prompts, voice APIs… It’s not just about automation anymore, it’s about experience. At JetSoftPro, a software development service, we’re always looking at how intuitive AI design can transform user interactions. Great breakdown in this video!

[kshitijagrawal]

Love this review! I usually browse the AI-UX interaction library for inspiration; it has best practices too, like "add example prompts" 13:40

[navya]

Will there be part 2 for this AI Ui series. Pls continue