How do I make a premium only player gui?

What I mean I if a player has Roblox Premium I want only them to be able to see the GUI and players who don't have premium can't see it.

Use it in local script inside starter player script.

Make sure your gui is NOT checked to reset when respawn.

local Players = game:GetService("Players")
local player = Players.LocalPlayer
local GUI_NAME = "Name"
if player.MembershipType == Enum.MembershipType.Premium then
	local GUI = player.PlayerGui:FindFirstChild(GUI_NAME)
	if GUI then
		GUI.Enabled = true
	end
end

More details and articles about membership type:Wiki.