According to Sony, two new models will have an advanced central processing unit, called the super core, that will be twice as fast as the previous version.
Specifically, the new Aibo robots will have processors running at 384MHz, doubling the previous speed of 192MHz. Through Sony's 16MB memory stick, the company plans to increase Aibo's ability to handle new software applications.
Sony has been trying to encourage software development for the Aibo by providing software development tools to academia and programmers.
The two new models will go on sale online July 1 and through retailers July 15 with prices ranging from $1,299 to $1,499.
Last month, Sony announced a lower-end model, the Aibo ERS-31L, which looks similar to a pug or bulldog.