Not OP, but I've been interested in both technologies for a while. Elixir with Phoenix feels like modern RoR, so it's probably best suited for startups that wan

Not OP, but I've been interested in both technologies for a while. Elixir with Phoenix feels like modern RoR, so it's probably best suited for startups that want to build their products fast and want to scale easily and cheaper. IMO Go is perfect for big companies and somewhat middle companies where they have some heavy traffic that needs to be addressed. I guess Golang is also easier to start with and craft something very fast as opposed to Elixir. (You can check multiple topics on elixirforum.com where people ask why their first-iteration code is slower than that in ruby/python.) I can be wrong, but I haven't found any golang opinioned-matured web framework, because most of the community is okay with building from the ground up. This may suggest that golang would be preferable in complex/enterprise systems? I'd choose Elixir for something that has to be done fast and be reliable and open for a lot of modifications that can be introduced without sweating. My point of view is based on building some simple product in Elixir and doing research. Also, a previous company I worked for had Golang and Ruby stack.