system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] What's the difference between Grand Master and Master of the Order?

It always seems that in the prequel movies both Yoda and Mace seems to be the leader of the Jedi Council at certain parts of the movie yet Mace Windu is only a Jedi Master and not Grand Master. But Mace Windu held title of Master of the Order.
gpt
"Master of the Order" is the leader of the Jedi Order as a whole, and is  elected by the Jedi Council. Both Mace Windu and Yoda held this role at different times.

"Grand Master" is an honorary title given to the "oldest and wisest" member of the Jedi Order, and they chair the High Council specifically.