There are various AIs that come with the Spring project.

Total Annihilation
Short name = RAI
Version = 0.601
Name = Reths Skirmish AI(RAI)
Description = Plays a nice, slow game, concentrating on base building. Uses ground, air, hovercraft and water well. Does some smart moves and handle T2+ well. Realtive CPU usage: 1.0 Scales well with growing unit numbers.

Known to Support: BA, SA, XTA, NOTA