The Ray Blog is a company blog on Ray, a framework for scaling Python and machine learning workloads across clusters.
HN commenters link it to answer questions about Ray, such as that it uses the actor model, via the Ray for the Curious post.
Thanks!
Turns out an easy google search answered my question as well... this post https://medium.com/distributed-computing-with-ray/ray-for-the-curious-fa0e019e17d3 does say that ray uses the actor model, and ray is listed on The Actor Model wikipedia page as an Actor Model library.