LLM packages which one to choose?

Emacs
1

Hello,

In the coming month the customer I work for will allow to use LLM (aka AI) for software development. It is currently reviewing some of them.

So, I am looking for a package to dialog with those beasts.

Currently, I have found:

  • copilot, which is specific to one LLM, copilot from github
  • gpt.el
  • ellama

For what I have seen, copilot provides auto-completion/auto-suggestions, while gpt.el and ellama, seems to be more for “chatting” with LLMs.

  1. Does any of gpt.el or ellama can be used for auto-complete and/or auto-suggestions?
  2. Do you know any other packages allowing interactions with LLMs?
  3. What are the differences between gpt.el and Ellama and any similar package you may know of?
2

gptel for general LLM interactions including doc generation, summarization, and a handful of other tasks.

aider.el for spec-based coding.

claude-code.el for architect mode + small code gen. It’s damn expensive if you need to generate a lot of code. IndyDevDan on YT has a good video on how to use Claude for architect mode but shunt code gen over to aider via MCP where you can then configure whatever LLM you want for code. In his example he shunts over to a gemini pre-release because at the time of recording it was free to use other than Google’s usual surveillance.

You didn’t ask but I find Openrouter to be pretty darn useful for multi-plexing access to models regardless of provider as well.