what is the difference between OctoX8 and OctoFlatX

[oterpoter]

all of a sudden I am not sure I entirely understand what the differences are..
I have built one octocopter with 8 arms (4 arms in X config, splitting all 4 arms into 2 new arms)
is this a octoX8 or octoFlatX?
-m

[PatrikE]

Same differencde as a TRI and a Y6.

X8 is a "Quad" with 8 motors.
Upper and lower.

[oterpoter]

Figures! I should have understood that my self.
Thx for your reply!
-m