I asked it to produce a perfect pangram, which uses each letter once and only once. It unsurprisingly couldn't do it despite explicit instructions. It did produce several known examples of pangrams using all 26 letters but didn't seem to have "Mr Jock, TV quiz PhD, bags few lynx" memorized.
The list it provided certainly had the feel of some of the more vexing examples of a pangram, but curiously did not contain all 26 letters.
I then asked it to count how many unique letters of the alphabet each contained. It (incorrectly) asserted that each line had all 26 characters.
I’m not surprised, just disappointed.