This Pokémon does not evolve.
How do you evolve Ditto in Pokemon go?
Ditto is a Normal Pokemon. While you will get 3 candy for catching it as is standard, there is no evolved form. You can power it up though as with other Pokemon with a combination of candy and Stardust.
Can Ditto copy Mewtwo?
Mew and Ditto share a common weight of 8.8 lbs. Mew and Ditto are both genderless. ... Mewtwo's bio states its the only successful clone of Mew, alluding to more than one attempts. It was implied that Mewtwo was created on Cinnabar Island, where Ditto can be found and caught there.