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Lenny's Podcast · 3 min · Apr 10, 2025

Chat remains a versatile baseline for AI interfaces

Kevin Weil argues chat works because natural language handles open-ended requests across ability levels.

In this episode

Full analysis
  1. 19:13Evals tell you what AI product to build6 min
  2. 59:20Break AI work into specialized models and tasks5 min
  3. 1:17:59Libra failed by trying to change too much at oncePro pick 4 min
  4. 26:19OpenAI plans for alignment, not a fixed roadmap6 min
  5. 36:01AI interfaces can borrow from how people think5 min
  6. 40:53Chat remains a versatile baseline for AI interfaces3 min
  7. 47:59OpenAI hires PMs for agency and ambiguity tolerance5 min
  8. 1:04:40AI tutoring is a major unmet opportunity3 min
“most people don't believe but i actually think chat is an amazing interface because it's so versatile”
Kevin Weilat 41:28 · Lenny's Podcast
41:28

Takeaways

  1. Natural language offers a flexible way to express intent.
  2. Chat can handle a broad range of requests and capabilities.
  3. Use prescribed interfaces for repeatable tasks; keep chat as a catch-all.

About this segment

Kevin Weil argues chat works because natural language handles open-ended requests across ability levels. He sees specialized interfaces working for narrow tasks, with chat as a fallback for everything else.

Kevin Weil

Kevin Weil is chief product officer at OpenAI.

Co-founded Warp Sciences after leading OpenAI's science unit and serving as its chief product officer.

  • Lenny Rachitsky, Host · Host, Lenny's Podcast

    Spent seven years at Airbnb; his product newsletter has over 1M subscribers.

From “OpenAI’s CPO on how AI changes must-have skills, moats, coding, startup playbooks, more | Kevin Weil”, Apr 10, 2025. Watch the full episode

Transcript

Transcribed by machine (Whisper) from the episode’s audio, so a word may be off here and there.

  1. 40:58

    summit that has really stuck with me. This idea that chat, people always make fun of like chat is not like the future interface for how we interact with AI. But you made this really interesting point that may argue the other side, which is like as humans, we interface by talking and the IQ of a human can span from really low to really high. And it all works because we're talking to them and chat is the same thing and it can work on all kinds of intelligence levels.

  2. 41:22

    uh maybe just share maybe i just shared it but uh i guess anything there about just why chat actually ends up being such an interesting interface for all elements yeah i don't know if uh maybe i'm uh maybe this is one of those things i believe that most people don't believe but i actually think chat is an amazing interface because it's so versatile um people tend to go oh chat yeah well that's just like you know we'll figure out something better and i kind of think i kind of think this is uh it's it's it's incredibly universal because it is the way we talk like i can talk to you verbally like we're talking now i can you know we can see each other and interact uh we can talk on whatsapp and you know be texting each other but all of these things is this sort of like unstructured uh you know method of

  3. 42:09

    communication and that's how we operate if i had to and if i had some more rigid interface that i was allowed to use when we spoke, I would be able to speak to you about, you know, far fewer things and it would actually get in the way of us having like maximum communication bandwidth. So there's something magical. And by the way, in the past, it never worked because models there, there wasn't a model that was good at understanding all of the complexity and nuances of human speech. And that's the magic of LLMs. So to me, it's like an interface that's exactly fit to the power of these things. And that doesn't mean that it always has to be just like, I don't necessarily always want to type but if you you do want that very open-ended flexible communication medium it may be that we're speaking and the model's speaking back to me but you still want that like that the very sort of

  4. 42:58

    lowest common denominator um no restrictions way of of interacting that is so interesting that's really changed the way i think about the stuff is that point that chat is just so good for this very specific problem of talking to super intelligence basically by the way i think there are like it's not that it's only chat either like there are if you have high volume use cases where they're more prescribed and the you don't actually need the full generality there are there are many use cases where it's better to have something that's less flexible more prescribed faster at a specific task and those are great too and you know you can build all sorts of those and but you still want chat as like this baseline for anything that falls out of whatever, you know, vertical you happen to be building for.

  5. 43:46

    It's like a catch-all for like every possible thing you'd ever want to express to a model. I'm excited to chat with Christina Gilbert,