What is the difference between Monad and Logos?

[Henosis]

Greek philosophers and gnostics were not familiar with the Law of One but they did have similar philosophical foundations.

The Monad would be the first emanation of the Absolute, akin to the first Logos which emanates from intelligent infinity or unity. However, I've seen this term often used synonymously with the Absolute or intelligent infinity as well. It's use tends to vary, but I associate it with the former.