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Transcript: Mark Zuckerberg Interview on Meta’s Muse AI Agent – Sources Podcast

EDITOR’S NOTE: In this episode of the Sources podcast, host Alex Heath sits down with Meta CEO Mark Zuckerberg to discuss the launch of Meta’s Muse personal AI agent and the recently published manifesto outlining Meta’s vision for AI. Zuckerberg shares his views on open source, the distribution of AI technology, and why he believes putting powerful tools in the hands of individuals — not just a handful of labs — is the key to a safe and prosperous future. This interview episode was premiered September 9, 2026.

TRANSCRIPT:

Opening: Calling Through the Glasses

ALEX HEATH (00:00:00 – 00:00:06): Mark, last time we spoke, you called me, it was on the weekend. Well, you called me through the glasses, which was the interesting part.

MARK ZUCKERBERG (00:00:06 – 00:00:07): Was it loud in the background?

ALEX HEATH (00:00:07 – 00:00:13): You were going to fish. I wasn’t going to say it, but yeah, it was on the weekend. The noise cancellation actually is pretty good.

MARK ZUCKERBERG (00:00:13 – 00:00:14): Oh, it’s great.

ALEX HEATH (00:00:14 – 00:00:14): Yeah, it’s pretty good.

MARK ZUCKERBERG (00:00:14 – 00:00:16): Yeah, I mean, yeah.

The Manifesto: Why Write It?

ALEX HEATH (00:00:16 – 00:00:37): But you wanted to talk about this essay manifesto. I don’t know what you call it. Manifesto, we’ll say, that you published recently. And it’s long. I mean, I’ll caveat that there’s a lot in it. And I wanted to start there ’cause there’s a lot of big ideas in there and they’ll connect to kind of the main thing we’re talking about today. I’m curious, why write that? Because it’s long. There’s a lot in there.

MARK ZUCKERBERG (00:00:37 – 00:04:02): Well, yeah. Well, I feel like if you’re going to invest so much in building AI, then it’s important that people understand what your lab stands for and what your values are. And basically, AI has so many opportunities, but there are also all these real risks. So I think it’s very important that everyone who’s working on it has a well-thought-out theory for how the work that they’re going to do is going to lead to a positive future.

It’s interesting because, I mean, the different labs have some different philosophies on this. And there’s a lot of things that I think have become conventional wisdom in the industry that I just strongly disagree with. And my view on this is that the path to have a positive future for everyone is to make sure that we distribute the technology as widely as possible.

And that’s based on 3 major principles that we have. One is that empowering people is the source of prosperity in the world, and it has been throughout history. 2 is that the primary purpose for AI is going to be invention of new things, not automation. And then the 3rd principle is that the foundation for safety for the future is basically establishing the right checks and balances and balance of power rather than restricting access.

And I think that these are all things that I think oddly are kind of very different from, I think, a lot of the conventional wisdom, especially in Silicon Valley. A lot of people think, hey, this technology is very powerful, we must restrict it so that way not that many people have access to it. I personally am much more worried about a small number of labs or people having control of something that is so capable.

And I think that throughout history, what we’ve found is that when you put power in people’s hands, most advances don’t come from the incumbents or the establishment. They come from people on the periphery whose ideas aren’t taken seriously. But when they get enough tools to basically be able to prove out what they’re working on, that ends up being very powerful.

In Western society, the way that we’ve established governance and basically having a well-balanced society is through a set of checks and balances, right, and this balance of power. It’s very ingrained in kind of our society that you don’t want to have one lab or two labs having access to a thing.

For some of the most recent concerns that have come up, like some of these cybersecurity concerns, I think the best antidote to someone having an AI that could potentially hack into systems is having everyone have access to an AI so they can harden their own systems first. And I think that that’s kind of been the history of cybersecurity over the past several decades is that, you know, open source software, because people can see it and can scrutinize it, it’s sort of counterintuitively by putting it in people’s hands, you end up with a more secure and more stable environment.

So that’s what I believe. And that’s what I think is the path to a positive future, is basically distributing the technology. That has a bunch of different implications for what we’re going to do. I mean, obviously we want to build leading AI models, which we’re doing. I mean, Muse Spark 1.3, which we just released, is advanced, but then, you know, it’s actually the latest model of a relatively smaller pre-train that we did, the internal codename Avocado.

Muse Spark, Avocado, and Watermelon

ALEX HEATH (00:04:03 – 00:04:04): Oh, we’re going to get into the code.

MARK ZUCKERBERG (00:04:04 – 00:04:47): Oh yeah, so we’ll get into that. And we have Watermelon coming soon. So that’s going to be a big deal. So obviously, leading models, probably the biggest personification of, you know, if you will, or kind of implementation of this vision is the Muse personal agent that we’re rolling out. That basically the idea there is give every person in the world a very capable personal agent that can understand their goals and can just work on their behalf 24/7. And then an important part of this is also is just getting the technology in people’s hands.