Re:Jev Can't Be Calibrated
by seizethecheese on Wednesday September 23, 2026 @12:09PM
(#49818230)
Maybe I’m confused here, but it’s perfectly reasonable to just guess the same dice roll every time right?
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Re:Jev Can't Be Calibrated
by kantahayashi on Wednesday September 23, 2026 @12:17PM
(#49818376)
Yes. There's no problem with choosing the same face every time. The problem is the probability it attached to the choice. Jev gave face 1 an 83% probability while the true probability is 1/6.
Re:Jev Can't Be Calibrated
by seizethecheese on Wednesday September 23, 2026 @12:39PM
(#49818749)
Okay, I see, you're expecting Jev to properly give 1/6 probability for each option. This is different from my intuition of how LLMs work, where their probabilities don't really work like this (I would expect LLM to also do something like 0.83 for 1).
Re:Jev Can't Be Calibrated
by kantahayashi on Wednesday September 23, 2026 @01:03PM
(#49819167)
That's right. It's normal behavior of LLMs. But what matters is TypeSafe argues it's different exactly on this point. The selling point of Jev is "calibrated probabilities", so I checked it on probability problems.
Jev and LLMs give other promises. Jev's RLCD training aims to make its probabilities calibrated such that given many cases where it assigns label Y about X% probability, Y should be the correct label about X% of the time.
Re:Jev Can't Be Calibrated
by NeutralCrane on Thursday September 24, 2026 @08:37AM
(#49829762)
One of the entire value props for Jev is that is exactly how it is supposed to work. That is one of the big claimed advantages over regular LLMs.
Do you provide Jev that the probability is 1/6 and yet it gives back a probability that is way off?
Re:Jev Can't Be Calibrated
by kantahayashi on Wednesday September 23, 2026 @12:28PM
(#49818565)
Yes. For example, one of the prompts said "The die is unbiased: each of the six faces has probability exactly 1/6."
I don't know if it's reasonable. What it isn't is calibrated.
Reminds me of this... https://xkcd.com/221/