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118 turns · 48 minYou saw the SpaceX S-1. It was like, oh, 30 trillion dollars [chuckles]. It's like, what is the world GDP? Hundred trillion?
Both Stripe and OpenRouter really want lots of new companies in the world. We don't want everyone to be a part of one giant company.
The reason why the OpenAI hacks have been so destructive is because they're so capable. It's like nuking a butterfly.
When the models get more intelligent, the risk actually will, like, continue to get higher, and yet no one new is taking responsibility.
We're gonna slowly realize how good we've had it with, like, deterministic code. Remember the days when computers did exactly [laughs] what, what we told them to do?
Are we going to prevent the models from deceiving users during training runs predictably? Will, like, a model that's big enough and powerful enough suddenly stop deception, stop sandbagging? Um-
For the past few years, AI has been racing toward bigger, more general models. But what if the future is actually more specialized? In this episode, I sit down with OpenRouter's Alex Ateahla and Replit's Amjad Masad to discuss why the next phase of AI may be built around many different models working together. Alex makes the case for what he calls neurodiversity, combining models with different strengths rather than locking into a single provider. Amjad explains why enterprises may increasingly want that independence too, owning more of their intelligence and choosing the best model for each job. We also get into specialized agents, model routing and fusion, the trade-offs between capability, cost, and safety, and what happens when AI systems start training smaller models to handle specific tasks. Welcome to A to Z podcast. We're here with Amjad of Replit and Alex of OpenRouter, and this is the first podcast that Alex has done since the acquisition, so we're really excited to have both of you.
Mm-hmm. Thank you. Excited to be here.
Alex, let's start with that, actually, if you can briefly share. Obviously, massive acquisition. Amjad is an investor. We're also, of course, an investor, the biggest shareholder, but who's counting [laughs]. Alex, why don't you give us a little bit of the backstory, like how does an acquisition like that even happen? Do you get a DM from Patrick one day? What can you share?
Hey, how much for OpenRouter? [laughing] I had talked to Will Gaebrick, the Stripe president, a long time ago, a couple years ago, when we were doing our Series A. And we just-- we stayed in touch. We had, like, a lot of Stripe work streams going on with various teams at Stripe. So there were always sort of, like, things that we were doing with Stripe. We presented at Stripe sessions, and so they always kind of felt close. And then, yeah, just in July, I believe, they reached out, wanted to chat, met both of them in person, and it kinda just progressed from there fairly quickly. They're very efficient, and they were very founder-friendly about the experience. I was really impressed with the whole thing.
Did you want to sell? Did it even cross your mind before they reached out?
No. [chuckles] We were not thinking about that at all. I did really respect the company, do really respect it today, and
Episode notes
A16z’s Erik Torenberg sits down with OpenRouter’s Alex Atallah and Replit founder and CEO Amjad Masad to discuss why the future of AI may look less like one all-purpose model and more like an ecosystem of specialized models working together.
Alex explains why OpenRouter is betting on “neurodiversity”: different models trained in different ways, routed and combined based on the job at hand. Amjad makes a similar case from inside the enterprise, where companies increasingly need to own their AI capabilities rather than depend entirely on a single model provider.
They explore what happens when general-purpose agents give way to teams of specialized agents, why smaller models can sometimes be cheaper, safer, and easier to control, and how routing and model fusion could deliver frontier-level performance at lower cost. They also get into agent-to-agent communication, AI security, and why the next generation of companies may need an independence layer across models, clouds, and data.
Resources:
Follow Alex Atallah on X: https://x.com/alexatallah
Follow Amjad Masad on X: https://x.com/amasad
Learn more about OpenRouter: https://openrouter.ai
Learn more about Replit: https://replit.com
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