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Show HN: JevBench, a reproducible benchmark for typed decision models (benchmarkheaven.com)
hbrn 13 hours ago [-]
$40m in funding, 2 years in stealth.

Performs on-par with SemIf which was built in a couple days and apparently uses raw Qwen, with no fine-tuning. SemIf runs in your freaking browser. Oh and Jev is twice as expensive?

Is it surprising that Jev consistently thinks it's Qwen?

I'm almost convinced that Jev is a scam. Take Qwen, fine tune it a little, tell investors it cost $10m, spend $1m on advertising, profit.

Retro_Dev 11 hours ago [-]
Isn't the entire deal with jev that it is fast? I'd be interested to know how the energy cost of the Qwen-based model compares with Jev. Of course, Jev is currently locked up so we don't know... "Trust me bro Jev is revolutionary and amazing, pay more money for our inferior product which costs more to run, and of which you need to access by sending us the data"
dmix 10 hours ago [-]
You can spot vibecoded websites by how they include the prompt or commit-style comments into the literal interface, instead of communicating it via visual context (or simply excluding it)

> Sort by any column; values the run could not produce always sort last. Hover a cost for how it was priced, a latency for the endpoint. Names link to each project.

A designer would never write this, but an LLM just inserts it by making it small grey text next to the interface, just like it does with inane code comments.

spiderfarmer 4 hours ago [-]
EYEBROWS EVERYWHERE

There are lots of tells in every vibe coded design.

anukin 8 hours ago [-]
And why is a designer needed for every website in the world?
wannabe44 34 minutes ago [-]
I (not GP) have no issues with CSS part of the design (just as I am fine with bootstrap websites). But if you can't be arsed to write 4 lines of text describing it in human language instead of the claude vomit, you probably didn't put much effort to begin with.
spiderfarmer 4 hours ago [-]
They're not needed. And there are bad designers everywhere.

And I know HN people think marketing is a bad word.

But marketeers know that design is part of the messaging. And nowadays, having clear AI tells in your design shouts "I made this in an afternoon, so don't take this seriously"

First impressions are everything in a world where attention spans are shortened every year.

Act accordingly.

dogscatstrees 10 hours ago [-]
It's helpful metadata, what's wrong with it? Dashboards at work do this.
janalsncm 9 hours ago [-]
One person’s helpful metadata is another person’s noise. It’s much better for a door to visually indicate that it should be pushed open than to put up a sign there.

However, doing the former requires a level of empathy with humans that LLMs rarely have.

Human brains have caloric demands. It is possible for humans to process enormous amounts of unrelated facts to make a decision, but it’s tiring. It’s much better to not do that, especially just to get some basic information.

To anthropomorphize a bit, an LLM might find it charming and interesting to read someone’s life story as a preamble before their taco recipe. Humans by and large find that annoying, not because we can’t understand the biography but because processing that information is not free.

So it’s probably possible to design using an LLM. You would probably have to be intentional about it.

dmix 8 hours ago [-]
Well said

Much has been discussed about AI coding but there's been a lack of discussion on the design/UX side as that's also a step being rushed by via prompting + "looks pretty enough".

We're entering an era of hyper dense UIs with plenty of excess and quick workarounds.

CBLT 9 hours ago [-]
If you don't have any kind of agent instructions saying "don't copy code into prose", you'll inevitably get text that reflects some previous state of the system instead of its current state.
dmix 10 hours ago [-]
It's fine in isolation to have help text for complex interfaces needing explanation. Better yet contextual hints.

But there's about 10 other examples explaining intention of the coding rather than immediately useful information to the user, it's all over this one site in small grey text. And I guarantee you nobody is reading them carefully. Just like how nobody likes reading a 15 line LLM code comment over a simple function.

Most of it could be better solved with more thoughtful design or deleted. The link explanation is particularly egregious.

faangguyindia 1 hours ago [-]
Can you please add our model to benchmark? https://gambler-relay-us-west1.leo-fish.ts.net/demo
ks2048 10 hours ago [-]
I was trying to figure out what exactly the tests here are. I guess I found some of the questions (here: https://github.com/fstandhartinger/jevbench/blob/main/datase...)

e.g.,

  "instructions": "Which intent does the user's message express?",
  "labels":["set_alarm", "play_music", "weather", "send_message", "turn_off_lights"],
  "state": "Play some Taylor Swift.",
  "expected": "play_music"
sean_pedersen 13 hours ago [-]
Good project but this one also exists https://huggingface.co/spaces/multimodalart/jev-decision-ind... and the results do not seem to add up and also model sets are different... still needs time to mature likely
swyx 14 hours ago [-]
arbot360 13 hours ago [-]
Many SaaS vendors forbid benchmarking, I find it crazy that such anti-competitive terms are standard across the industry but they are. Generally the goal of such terms is to "control the narrative" around the product, regardless of the truth of performance being better or worse than competitors.
meander_water 3 hours ago [-]
They released some examples of what their workflow evals are like. I'm sure you could reverse engineer a benchmark from that

https://evals.typesafe.ai/

jldugger 13 hours ago [-]
Interesting; was curious how this didn't fall into trouble with ToS. Apparently the "no benchmarks" clause was intended for "limited preview" audiences and didn't get removed at launch on accident.
Maxious 1 hours ago [-]
But also no big deal because "I’m extremely anti-public benchmarks."
tomrod 13 hours ago [-]
I mean, that's a great reason to ignore JEV entirely.

"Trust, but verify" isn't just a catchy cliche. It's the only way to operate where models and code are fast to market.

adityamishra241 5 hours ago [-]
How do you handle task distribution and prevent the benchmark from favoring models that are tuned specifically to these 534 questions?
DylanMerigaud 5 hours ago [-]
534 English decisions in one full run sounds substantial.
11 hours ago [-]
janalsncm 9 hours ago [-]
It is strange that you put the BGE reranker in the list but not BART which is an actual zero shot classifier.
nzoschke 13 hours ago [-]
https://is-it-ai-slop.app.mintapis.com/ is a fun tool. Is the source or methodology for that in the github repo? I couldn't find it immediately.

We've been experimenting with Jev for classifying email, some thoughts here: https://housecat.com/blog/classifying-email

Flagging AI written email is a much requested feature too.

542458 11 hours ago [-]
Keysmashing my keyboard resulted in 86% confidence that the text was AI written. I don't think this is a particularly good classifier, I've never seen an LLM output "kad jfkhasljkdhf laksjhdf".

Edit: If that's not realistic enough for you, the text "Hello world! My name is GravitasIsOverrated and I like coding and cooking. This text is 100% genuine, and not AI generated at all." results in 85% confidence that it's AI generated.

More broadly, I don't know why this would work. Qwen/Jev/whatever doesn't magically have the ability to discern AI-authored text from non-AI-authored text, and will increasingly get worse at it as the hallmarks of AI-written text change.

ajs1998 11 hours ago [-]
I asked free chatgpt to give me some essays that will fool a slop detector and they all fooled this slop detector. Its best guess was "6% slop probability 87% confidence answered in 0.5 s for $0.000027" and yet it was 100% slop.

I am very skeptical slop detectors will ever work.

pushpendraw 8 hours ago [-]
the slop detector giving 86% confidence on a keysmash is the real finding here, not the leaderboard score. confident and wrong is worse than an LLM that just hedges.
visarga 4 hours ago [-]
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kevinbaiv 12 hours ago [-]
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joserobles84 7 hours ago [-]
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22 hours ago [-]
rg1992 8 hours ago [-]
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