Is Ultra Instinct a Super Saiyan transformation or can anyone attain it? We know that Super Saiyan, Super Saiyan 2, Super Saiyan 3, Super Saiyan God, Super Saiyan Blue, Super Saiyan Rage, Legendary Super Saiyan, Super Saiyan Berserker, Super Saiyan Evolution, etc. are all Saiyan transformations, they can only be achieved by Saiyans. But what about Ultra Instinct? Could a human, a Namekian, a frost demon, etc. attain it?
The answer to this question can be drawn from a few scenes from Episode 110 of Dragon Ball Super:


Lord Beerus saying what transformation Goku might have gone through:


Lord Champa in shock after hearing what Beerus said:


The Supreme Kai realizing how Goku's movements linked to what he knew:


The Supreme Kai doubting Goku's ability to reach that transformation:




The Gods being pressurized by Goku's transformation:




All this would mean that it's not an exclusive Saiyan trait or transformation, but an extremely powerful and difficult ability that the Gods and other Omega level fighters are known to use.