Jev: System One models for Prod, not God — with Diogo Almeida, CEO, TypeSafe AI
Latent Space: The AI Engineer Podcast
September 21, 2026
Tickets for AIE NYC now open, and apply for the invite-only AIE CODE. Join us!
Speakers Swyx, Diogo Almeida
TopicsTechnologyScience
Swyx (0:03)
Okay, we're in the studio, a special occasion, because this week, Diogo, my good buddy, launched Jev, and it's been taking over the complete timeline.
How do you feel? What's it like to be you right now?
Diogo Almeida (0:16)
Emotionally? Never been worse.
Like I'm a ragged corpse of a person right now, because there's so much going on, and I'm like a technical CEO, so I have like a lot of fires to fight. But like mentally, it's like, I feel, I say this all the time, and I've been saying this kind of for years in my over under events. Like, I feel like the entire AI field is like one of those like carnival house of mirrors, and everyone is just insane and saying the weirdest stuff that doesn't make sense. And it feels like for just this week, like, I'm on a better in sync with reality and like, oh, people see it now. AI can be so much more than what was once thought. And like, yes, we are going to make, like an AI-based economic revolution is back on the table. And this is fucking awesome. You know, this is fucking awesome. I'm so jazzed the developers get it.
It's, yeah, and I want to show by internal gratitude to the developers, I'm so jammed about the community and everything. It's so great.
Swyx (1:28)
Yeah, you were saying yesterday that you decided to prioritize the town hall and not a bunch of VIP investor type people because you wanted to make sure that they are the people that you get your most attention, right? The engineers, the developers.
Diogo Almeida (1:42)
Yeah, it felt a little like, oh, man, I'm talking to really important people right now. I probably shouldn't reveal who. But it feels a little bit dirty for me to, I'm perhaps overly genuine in things. It feels dirty if in my gigantic calendar event of things to people to talk to, the community isn't one of those. And actually in my ideal world, it would be community all the time. I was thinking, should I host a town hall while walking to your studio? And I was like, nah, that's too crazy. Sure. Yeah.
Swyx (2:14)
Well, you guys have been hosting town halls on the Discord. Discord is now 100,000 people. I don't follow these stats.
Diogo Almeida (2:20)
So, holy shit.
Swyx (2:21)
Your Twitter is blown up. You know, it was really funny because at AIE, you were like, follow me, please. And then you didn't provide even your handle.
Diogo Almeida (2:28)
I'm a noob.
Swyx (2:29)
You're such a noob.
Diogo Almeida (2:30)
I'm a noob.
Swyx (2:31)
But no, that's a positive aura that you don't know how to promote yourself.
Diogo Almeida (2:35)
Someone called me out when I posted, holy shit, we're all three trending topics. And then they're like, that's a personal feed.
Swyx (2:42)
That's a personal feed. I'm like, oh no. Of course, they're trending to you. Yeah, yeah, yeah. Because it's what you clicked on. So okay, let's, so congrats on everything. We'll talk about more details as you have them. But let's, for people who are living under a rock or just once, like the definitive thing, what is Jev?
Diogo Almeida (3:02)
Whew, let me think about, that's a hard one.
Swyx (3:06)
Okay, and I'm happy to like re-ask if you want to.
Diogo Almeida (3:09)
No, no, no, I'm happy to just jam on it. I will say the first thing that I'm relieved about this question is now I don't have to answer that question to my parents anymore because ChatGPT can just explain it.
So the way I see it is we need a new class of models. We're not attached to naming that class of models. The most accurate name we've come up with is System 1 models. There will be reasons, but there's a reason why we don't call them decision models, because System 1 is beyond that. That's all I can say.
We didn't expect this to be our big launch, so we have stuff in the tank.
Swyx (3:48)
You should have said low key research preview.
Diogo Almeida (3:52)
It kind of was, right?
Swyx (3:53)
It kind of was.
Diogo Almeida (3:55)
So there's a class of models that we describe them as machine native, System 1, large programmable. I think these are the class of models where the goal is for code to be the consumer. So as opposed to pre-trained large language models, which are meant for like autocomplete of the internet, or RLHF models like chat bot instruction following models, which are meant to reply to text, or RLVR, it's in a weird gray area with RLHF. These are meant to have things that directly are consumed by code, hence the name TypeSafe. So the thing we really, really, really want is to have like AI be as powerful as possible. And we think the way to do that is to integrate it with software. And we are designing everything beyond just the outside, the deep internals of the model to be optimized for software. So number one, Jev is our first large programmable model, or system one model, whatever you want to call it.
128 more minutes of transcript below
Thousands of transcripts fetched by people building searchable podcast archives
Fetch the whole transcript
The demo key returns a sample episode in full, no card needed:
curl -H "x-api-key: pt_demo" \
https://spoken.md/transcripts/1000651996090Markdown with the speakers named, for your notes, your knowledge base, or anything that makes HTTP calls.
From $0.10 per transcript. No subscription. Credits never expire. Prices exclude VAT, added at checkout for EU customers. Not what you expected? Email us within 14 days with 20 or fewer credits used and we refund the pack in full.
Using your own key:
curl -H "x-api-key: YOUR_KEY" \
https://spoken.md/transcripts/1000791005427