In terms of getting a the consensus answer to a specific question, they're likely better than a median software engineer at most questions.
Where they still fall massively short, even compared to a straight out of college junior developer, is figuring out what the correct question to ask is.
This has led to situations like Fable 5 spending six days debugging a deadlock because it didn't think to add any observability to detect when the job stalls, and would wait until the job timed out each time. Any junior developer would have fixed it in a few mins, but I left Fable running out of curiosity to see how long it'd take.