In my experience, Go is one of the best LLM targets due to simplicity of the language (no complex reasoning in the type system or borrow checker), a high quality, unified, and language-integrated dependency ecosystem[1] for which source is available, and vast training data.
[1]: Specifically, Go community was trained for the longest time not to make backward-incompatible API updates so that helps quite a bit in consistency of dependencies across time.
[1]: Specifically, Go community was trained for the longest time not to make backward-incompatible API updates so that helps quite a bit in consistency of dependencies across time.