I think they're all fine. Cursor is popular and charges a flat fee for model calls (interposed through their model call router, however that works). Aider is probably the most popular open source command line one. Claude Code is probably the most popular command line agent overall; Codex is the OpenAI equivalent (I like Codex fine).

later

Oh, I like Zed a lot too. People complain that Zed's agent (the back-and-forth with the model) is noticeably slower than the other agents, but to me, it doesn't matter: all the agents are slow enough that I can't sit there and wait for them to finish, and Zed has nice desktop notifications for when the agent finishes.

Plus you get a pretty nice editor --- I still write exclusively in Emacs, but I think of Zed as being a particularly nice code UI for an LLM agent.

I've settled on Cline for now, with openrouter as the backend for LLMs, Gemini 2.5 for planning and Claude 3.7 for act mode.

Cursor is fine, Claude Code and Aider are a bit too janky for me - and tend to go overboard (making full-ass git commits without prompting) and I can't be arsed to rein them in.

Try https://aider.chat + OpenRouter.ai, pay-as-you-go, use any model you want, I use Claude Sonnet.

It has a very good system prompt so the code is pretty good without a lot of fluff.

I use Augment Code as a plugin in IntelliJ and PyCharm. It's quite good, but I only use it for narrow, targeted objectives, agent mode or not.

I haven't seen any mentions of Augment code yet in comment threads on HN. Does anyone else use Augment Code?

I've been having okayish results with Zed + Claude 3.7

Speaking up for Devin.ai here. What I like about it is that after the initial prompt nearly all of my interaction with it is via pull request comments.

I have this workflow where I trigger a bunch of prompts in the morning, lunch and at the end of the day. At those same times I give it feedback. The async nature really means I can have it work on things I can’t be bothered with myself.