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GPT-5.2

(openai.com)
1019 points atgctg | 1 comments | 11 Dec 25 18:04 UTC | HN request time: 0.001s | source
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jumploops ◴[11 Dec 25 18:58 UTC] No.46235526[source]▶
> “a new knowledge cutoff of August 2025”

This (and the price increase) points to a new pretrained model under-the-hood.

GPT-5.1, in contrast, was allegedly using the same pretraining as GPT-4o.

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FergusArgyll ◴[11 Dec 25 20:37 UTC] No.46236791[source]▶
A new pretrain would definitely get more than a .1 version bump & would get a whole lot more hype I'd think. They're expensive to do!
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1. jumploops ◴[12 Dec 25 01:17 UTC] No.46239733[source]▶
It’s possible they’re using some new architecture to get more up-to-date data, but I think that’d be even more of a headline.

My hunch is that this is the same 5.1 post-training on a new pretrained base.

Likely rushed out the door faster than they initially expected/planned.