Brex co-founder Pedro Franceschi discusses the limitations of relying on large language models without visibility into their underlying dataset distribution.
“And I think the biggest pitfall of LMs is you have no sense of How much training data the model has seen for the exact thing that you're asking it.”
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More from Pedro Franceschi
Insight
Franceschi: Startups Should Begin as Single-Person Companies with High AI Spend
“If I were to start a company today, I would say, okay, the premise is why can't it be just me? Like, and then you start from there and your token consumption is probably going to be a lot higher than if you said, well, I'm going to have like three people or fi…”
Pedro FranceschiJun 10, 2026▶ 16:41The Most AI-Pilled CEO We Know · Y Combinator
Insight
Franceschi: AI Commoditizes Execution; Choosing What to Build Is the Bottleneck
“The execution is out, right? The execution is gone and the model is going to do that better. The wisdom to choose is still, I think the. The missing bottleneck. And to me, that all comes from which signals are not in the models.”
Pedro FranceschiJun 10, 2026▶ 21:52The Most AI-Pilled CEO We Know · Y Combinator
PredictionOpen · timeframe Jun 2031
Franceschi: AI Token Spend Will Become Every Company's Biggest Expense
“I think the, you know, it will be the biggest expense in a company, like easily.”
Pedro FranceschiJun 10, 2026▶ 30:43The Most AI-Pilled CEO We Know · Y Combinator
Insight
Franceschi: Bolting AI Onto Legacy Workflows Fails Compared to Ground-Up Redesign
“And I think that the biggest discontinuities in a positive way that we've had were when we said, hey, let's keep this old way here, keep putting it in a corner. And like, how would we design it if we started the company today from scratch? And then just doing …”
Pedro FranceschiJun 10, 2026▶ 35:00The Most AI-Pilled CEO We Know · Y Combinator
Insight
Franceschi: CEOs Must Personally Act as Their Company's Chief AI Officer
“I think the CEO needs to be the chief AI officer. Like it's not a engineering team thing. It's not like a product team thing. It's like, you have to understand the bounds of the technology better than anyone.”
Pedro FranceschiJun 10, 2026▶ 39:22The Most AI-Pilled CEO We Know · Y Combinator
Insight
Franceschi: Every Good AI Product Is Just an Agent Loop With Tools
“Every single good AI product you've used is an agent loop with tools. That's it. Like there's no, you try to sort of over-engineer the harness and then do certain things, but at the end of the day, it's skills tools and a model. Like there's not really much el…”
Pedro FranceschiJun 10, 2026▶ 2:47The Most AI-Pilled CEO We Know · Y Combinator
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