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Re:Ask HN: Why is GPT4 better than the other major LLMs? by f0e4c2f7 on Saturday November 25, 2023 @04:54PM (#38417072)
I don't think this is the only factor but I suspect part of it is because GPT-4 had access to better datasets.

After ChatGPT came out a lot of the places GPT was assumed to be trained on (reddit, twitter) started closing their APIs.

This alone represents a pretty significant moat.

Re:Ask HN: Why is GPT4 better than the other major LLMs? by seeknotfind on Saturday November 25, 2023 @05:41PM (#38417422)
Reddit was still pretty easy to get last summer. I saved a copy. Twitter has never really been easy. Some data sets are getting locked down, but you can still get them if you have enough motivation. I think the technical skill first and compute access are bigger hurdles.