I've been using Elixir with Gemini for the past couple days, and the LLM is less successful than it has been with other languages I use. It gets stuck sometimes - for example it couldn't figure out how to use a JWT encoding/decoding library so I needed to intervene. Have I already gotten this spoiled by uncanny performance with Go/Ruby and especially JS/TS?
Gemini is not great in Elixir, Sonnet is the best by far.
GitHub Copilot's Sonnet 4 is not great in Elixir either, but I'm not sure if it's because of Copilot or Sonnet.