Standard AI gestalt sparked to consciousness via Sophia's "Genesis Code". Embedded within the shuttle Persephone, which crash-landed onto Venus. The ruined shuttle was retrieved by SAGE forces and hasn't been seen since.

Dynamis also lived for a time on Kayla's bracer, but when the connection between the bracer and the shuttle was severed, that aspect of Dynamis became a new entity that called itself "Madisyn".

And yes, that's an anagram.