They stated that in a cagey round about language way.

They further clarified, I even asked about that here (in this sub full of non experts) and someone clarified.

Additionally, GPT4 would not be used for search. Anything they are using for search is going to be a tiny model with much faster and cheaper inference, something that scales for a search engine. Hypothetically if GPT4 was even 500 million parameters, it would be untenable to use for search

Edit: here's where someone shared a link and a quote for me

https://www.reddit.com/r/singularity/comments/10w9p6n/-/j7mszte