I’m modeling up some custom bushings for another department, which is something I don’t usually do, so I asked Professor Google a question. Without thinking about it I used the first thing I saw, not realizing it was the AI answer.
Next time I’ll pay more attention.
That’s about right. “AI” LLM does not posses intelligence. It is extraordinary at identifying patterns in vast amounts of data and predicting the next element in a sequence, but it has no clue what it means, it cannot interpret.
AI is good at giving answers but not exact answers.
So it’s great at chit chat, picture generation. Not good at anything that need exact answer, like math and programming.
If it’s trained on specific data for specific use, it’s much better.
It can be a faster web search when researching. Still need to go through the results.
There are lots of people using AI and they are worse then AI.
I find lots of errors in Googles search AI output. Searched about two TV show episodes being similar and it gave a very inaccurate summary of one of them.
It’s scouring the internet and there is a lot of misinformation out there. Maximum AI entropy is coming once it starts referring to AI content for answers.
I asked the same question duck.ai (you can choose which LLM its using, this is
gpt-4o)
For a 3/4 inch tap, the recommended hole size for tapping
is typically around 0.640 inches (16.3 mm) for a standard thread.
However, the exact hole size can vary depending on the specific thread type
(e.g., coarse or fine) and the material being tapped.
For example:
- For a 3/4 inch National Coarse (NC) tap,
the hole size is usually about 0.640 inches.
- For a 3/4 inch National Fine (NF) tap,
the hole size is typically around 0.670 inches.
Always refer to the tap manufacturer's specifications
for the most accurate hole size for your specific application.
No idea if this is correct, I am a ‘metric’ guy 
NPT is a tapered pipe thread. So if your prompt included the “NPT” and this is the response then I’d say it’s wrong but more specific.
When I asked for the hole for 3/4 NPT tap specifically, the answer was
For a 3/4 inch NPT (National Pipe Taper) tap, the recommended drill size for the hole is typically 0.750 inches (19.05 mm). This size allows for the proper taper and thread engagement when tapping for NPT fittings.
I am guessing that’s still wrong?
Deepseek says:
Recommended 59/64"(~0.9219in) (23,4mm)
Alternatives 15/16" (for harder materials) and Letter Size Q(0,9210")
I’m beginning to think that doesn’t matter, as long as the answer was provided effortlessly and rapid.
IMHO, nothing really changed, most people rarely, if ever, verified information
from the Intertubes, looked past 2nd search page results or looked for reliable sources even before ‘AI’
Always refer to the tap manufacturer’s specifications
for the most accurate hole size for your specific application.
At least the AI knows to covers itself in case its wrong. 
I guess I should have specified that I wanted machine threads, not pipe threads.
AI is doing what it supposed to do.
Emulate human.
I just posted an AI article on linked in.
