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CompleteSkeptic

we've been public about this before the category was even created
of all comments, "enterprise" taste is among those I'd least expect
Re:Typesafe AI raises $870M at $7.5B on Friday October 09, 2026 @03:20PM (#50025424)
intentional to make it fun (:
Re:Ask HN: Who is hiring? (October 2026) on Thursday October 01, 2026 @11:53PM (#49929657)
typesafe ai | ONSITE in SF | basically all forms of engineering (front-end / back-end / infra)

help make jev!

typesafe.ai/careers

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @08:45PM (#49720799)
yes and can do many of those in parallel
Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @08:36PM (#49720723)
unfortunately all hand-written :( my chief-of-staff does unironically handwrite em dashes though
Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @06:37PM (#49719816)
the edit is right - jev would be cheaper, faster, and more self-consistent (in general)

we actually use astra (and fable) in this way for our evals: evals.typesafe.ai

someone on the team cooked hard on that and it shows example traces comparing our model to opus/sol

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @05:41PM (#49719245)
1. yes a general model 2. no training at all 3. but it is focused on "System 1" tasks (more human judgment, less math reasoning)
Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @05:27PM (#49719122)
strings (and all sequential data structures) are not allowed at all - this is how we make sure all outputs can be computed in parallel (thus no output token cost)
Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @05:26PM (#49719119)
They don't like adding stealth startups :(
Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @05:26PM (#49719116)
1. I am extremely on the same page 2. I do think that subconscious is not only much smarter than we give it credit for, but also much more robust than the "jagged frontier" of current LLMs

(shilling my blog post on that jaggedness: https://www.completeskeptic.com/p/lies-damned-lies-and-bench...)

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @05:24PM (#49719101)
very accurate!

the one nuance I'd get into is I'd call it "zero-shot" over "instruction-tuned" (the latter often implies a particular distribution), but very safe for sharing

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @05:22PM (#49719080)
> Type safety is not factual correctness.

I very much agree with this and want to hone in on where do actually disagree. Would you say a linear classifier hallucinates?

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @05:20PM (#49719064)
inputs are structured program state. there is an example at around second 30 of the doom demo

(though ideally everyone gets off the waitlist and can try it out for themselves )

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @05:02PM (#49718875)
we hope so! the bigger hope is to not just eat LLM market share, but to allow for people to use AI much more in the inner loop of software
Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @05:01PM (#49718867)
the hard part for coding is actually state engineering (e.g. getting your dependencies in context) - we haven't even tried it yet (because my philosophy is we should automate the easy tasks before the hard and we've been working on getting the model smart on the former)

we do think there's a lot of potential though and do want coding themed releases soon

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:59PM (#49718849)
thanks a ton!

constrained decoding (OpenAI-style structured outputs) make models dumber unfortunately - the short+dense version is that simply masking logits is insufficient because if ever a model was assigning probability to an invalid token, the model is by definition confused. you'd be better off erroring IMO

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:57PM (#49718824)
architecture is close to the chest for now, but we have talked about writing a paper

I don't want to shill my blog too much, but I will say data is probably far most interesting than architecture: https://www.completeskeptic.com/p/the-bitterest-lesson

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:55PM (#49718798)
love that you love the manifesto! letting the first batches off the waitlist now, but we do have some early users describing their experience (https://x.com/danshipper/status/2099947471518474522)
Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:54PM (#49718780)
that's right, but because these models are probabilistic, it's also possible to be confidently wrong (and all future models will be smarter still and still have that possibility)
Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:53PM (#49718767)
I'm biased but I wouldn't call it misleading - generating text is super awesome and flexible, (we describe that in the blog post - and I personally use string models all the time) but it's true you pay a high tax for autoregressive generation

> Also "can't hallucinate" seems wrong? Sure, it can't emit an invalid type, but it can still emit a completely wrong valid value.

that is likely true of all ML! perhaps we could debate semantics, but I don't think it's fair to say a random forest "hallucinates" in the way LLMs do

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:50PM (#49718727)
exactly right!
Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:28PM (#49718463)
definitely not AI-generated - this is my real wardrobe

we also thought the voice at the end was AI-ish, but apparently that's a real voice actor but slightly sped up

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:27PM (#49718450)
we have played with this! the fascinating thing we've found so far is that adversarial examples for our model are quite different from that of LLMs so that they work even better together
Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:27PM (#49718437)
it is just a model, no harness yet ;)

it is a structured data model, but technically not a language model (it doesn't generate language)

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:26PM (#49718432)
it's our output tokens that are free (under the system one / jev column)
Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:25PM (#49718416)
you could, but it the model is not optimized for text

this is complex, but generating text is highly complicated and requires mode dropping to make long cohesive text

Re:Jev: New frontier model 40-400x cheaper and 20-200x faster on Tuesday September 15, 2026 @04:24PM (#49718407)
CEO here - that is right!

I do agree that the comparison to LLM tokens is hard to understand (also because output tokens are not comparable).

But yes, text or structured state (like a JSON with multiple pieces of text in) -> decisions out (e.g. choice maps to "match" statement, "score" maps to sorting, "noul" short for bernoulli maps to if-statements)

Re:Better Models: Worse Tools on Saturday July 04, 2026 @09:39PM (#48790586)
constrained decoding tends to make models dumber - this is why it's rarely used

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