I use a small plugin I’ve written my self to interact with Claude, Gemini 2.5 pro or GPT. I’ve not really seen the need for semantic searching yet. Instead I’ve given the LLM access to LSP symbol search, grep and the ability to add files to the conversation. It’s been working well for my use cases but I’ve never tried Cursor so I can’t comment on how it compares. I’m sure it’s not as smooth though. I’ve tried some of the more common Neovim plugins and for me it works better, but the preference here is very personal. If you want to try it out it’s here: https://github.com/isaksamsten/sia.nvim
I also have a few screen recordings showing its capabilities. I’ve been using it for about six months to enhance my writing.
The plugin leverages a language model to suggest text improvements, features a split-view interface, and allows users to select the edits they want to keep from a diff.
It’s still a bit rough around the edges, and the code is quite messy since I’m still learning Lua and the Neovim API. However, I’m gradually improving it whenever I find the time.
