Well spotted. I didn't look that close before.
I agree with your ants ID but haven't seen that pale colour before. Obviously different species in different parts of the world which is why a location can help with ID for both insects and plants.
These may just be passing through and using the pot as a convenient pathway to a new home. Need to observe to work out if they are traveling or staying.
Ants are generally not good companions. They dig tunnels in the soil and can make it difficult for roots to develop properly. They also seem to make soil around the nests hydrophobic so watering becomes more difficult. Ants also 'farm' pests like scale and aphids.
Ants can be difficult to get rid of. It is possible to drown them by submerging the entire pot in water but it needs to be fully submerged for more than 24 hours as the ants will have air pockets in their tunnels.
A fairly strong insecticide is required to kill most ant species. Look for something that specifies ants on the label.