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 produ

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.