Early Model

i can sing a song (monotone)

Entry Model

Her face moves in time with her singing; can do simple dances, and hold formal conversation.

Mid-range

Sings with appropriate emotion (self-arranged) and understands the context of formal conversation.

High-End

Can sing, dance and chat.

Next-Gen Model

Can even make things on the level of omurice.

Next-Gen Model (with memory upgrade)

Even more delicate emotional expressiveness and advanced communication.

Experimental phase

Self-aware.