Trainerroad

Yes, see below as an example. Feel free to do the same, Ai test then do a ramp test.
Even better, get someone else to initiate the Ai one on your account, screen grab the result, then don't save it. Do the ramp test and compare afterwards.

Edit, below was in response to doing a real and Ai test close to each other, results were a few watts apart.

dbr AI before, test after. National Hill Climb in between.

Think my ramp tests have been compromised anyway since @cjr worked out
and told me the exact time at which you’re into higher FTP territory.
ie, anything past X mins = higher FTP, i I always hang on until at
least then if I can.

I think I have done a blind ramp test at some point, came out the
same.