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GPT-4 has achieved many successes, yet also has many failings
By Gary Marcus  |  Apr 04, 2023
GPT-4 has achieved many successes, yet also has many failings
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Many are wondering how GPT-4 fits into the larger tapestry of the quest for artificial general intelligence (AGI). To understand this, not only should one know which tasks it performs well, but also its shortcomings and why these are problematic.


This article has been adapted from the original version, which can be found on Gary Marcus' Substack.

GPT-4 is amazing yet also a failure, something which may be difficult to comprehend at first. To be clear, GPT is legitimately amazing: It can see (though there are not yet many details on that); it does astonishingly well on a whole bunch of standardized tests - the LSAT, GRE, and SAT - and it has already been adopted in various commercial systems, e.g., Khan Academy.

However, it is also a failure, and for the following reasons:

- It does not actually solve any of the core problems of truthfulness and reliability that I laid out in my infamous March 2022 essay Deep Learning is Hitting a Wall. Alignment is still shaky: One still cannot use it reliably to guide robots or scientific discovery, the kinds of things that make it worth being excited about A(G)I in the first place. Outliers remain a problem, too.

- This section about the limitations of GPT-4 reads in some ways like a reprise of that March 2022 paper, and it does not offer authoritative solutions to any of those earlier problems. The creators themselves acknowledge the following in their own words:

Massive scaling has thus far not led to revolution. Although GPT-4 is clearly an improvement over GPT-3 and 3.5, it is not - at least as

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