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OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

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Re: OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

#101

Post by indigodaddy »

danenania wrote: post #12

Cool to see more interesting terminal based options! Looking forward to trying this out. I've been working on something related—Plandex[1], an open source AI coding agent that is particularly focused on large projects and complex tasks. I launched the v2 a few weeks ago and it is now running well. In terms of how to place it in the landscape, it’s more agentic than aider, more configurable and tightly controlled than…

RE: the local/open-source version: Use your own OpenAI, OpenRouter.ai, and other OpenAI-compatible provider accounts.

^^ could I put in my free Gemini key so as to use Gemini Pro 2.5 ? I'm a bit beginner with everything around BYOB. Thanks..

Re: OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

#102

Post by ilaksh »

gklitt wrote: post #74

I tried one task head-to-head with Codex o4-mini vs Claude Code: writing documentation for a tricky area of a medium-sized codebase. Claude Code did great and wrote pretty decent docs. Codex didn't do well. It hallucinated a bunch of stuff that wasn't in the code, and completely misrepresented the architecture - it started talking about server backends and REST APIs in an app that doesn't have any of that. I'm curiou…

Did you try the same exact test with o3 instead? The mini models are meant for speed.

Re: OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

#103

Post by parhamn »

John23832 wrote: post #73
blt wrote: post #68

Sorry for being a grumpy old man, but I don't have npm on my machine and I never will. It's a bit frustrating to see more and more CLI tools depending on it.

I asked the same question for Anthropic's version of this. Why is all of this in JS?

JS is web's (and "hip" developer's) python, and in many ways it is better. Also the tooling is getting a lot better (libraries, typescript, bundling, packaging, performance).

One thing I wonder that could be cool: when Bun has sufficient NodeJS compatibility the should ship bun --compile versions so you dont need node/npm on the system.

Then it's arguably a, "why not JS?"

Re: OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

#104

Post by elliot07 »

mark_mcnally_je wrote: post #8

If one of these tools has broad model support (like aider) it would be a game changer.

Agree. My wish-list is:

1. Non JS based. I've noticed a ton of random bugs/oddities in Claude Code, and now Codex with UI flickering, scaling, user input issues, etc, all from what I believe of trying to do React stuff and writing half-baked LLM produced JS in a CLI application. Using a more appropriate language that is better for CLIs I think would help a lot here (Go or Rust for eg).

2. Customized model selection (eg. OpenRouter, etc).

3. Full MCP support.

Re: OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

#105

Post by newlisp »

retinaros wrote: post #34
cube2222 wrote: post #26

Fingers crossed for this to work well! Claude Code is pretty excellent. I’m actually legitimately surprised how good it is, since other coding agents I’ve used before have mostly been a letdown, which made me only use Claude in direct change prompting with Zed (“implement xyz here”, “rewrite this function with abc”, etc), so very hands-on. So I’ve went into trying out Claude Code rather pessimistically, and now I’m u…

too expensive. I cant understand why everyone is into claude code vs using claude in cursor or windsurf.

Why is using cursor with sonnet cheaper than using claude code?

Re: OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

#106

Post by tyre »

blt wrote: post #68

Sorry for being a grumpy old man, but I don't have npm on my machine and I never will. It's a bit frustrating to see more and more CLI tools depending on it.

this is a strong HN comment. lots of “putting a stick in my own bicycle wheel” energy

there are tons fascinating things happening in AI and the evolution of programming right now. Claude and OpenAI are at the forefront of these. Not trying it because of npm is a vibe and a half.

Re: OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

#107

Post by dzhiurgis »

cube2222 wrote: post #26

Fingers crossed for this to work well! Claude Code is pretty excellent. I’m actually legitimately surprised how good it is, since other coding agents I’ve used before have mostly been a letdown, which made me only use Claude in direct change prompting with Zed (“implement xyz here”, “rewrite this function with abc”, etc), so very hands-on. So I’ve went into trying out Claude Code rather pessimistically, and now I’m u…

I started using claude code everyday. It’s kinda expensive and hallucinates a ton (tho with custom prompt i’ve mostly tamed it).

Hope more competition can bring price down.

Re: OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

#108

Post by therealmarv »

newlisp wrote: post #105
retinaros wrote: post #34

Earlier quoted context omitted.

too expensive. I cant understand why everyone is into claude code vs using claude in cursor or windsurf.

Why is using cursor with sonnet cheaper than using claude code?

probably because cursor is betting on many paying people not using their tool to full extend. Like people paying on their gym memberships but not going to the gym.

Or they are burning VC money.

Re: OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

#109

Post by anticensor »

danenania wrote: post #12

Cool to see more interesting terminal based options! Looking forward to trying this out. I've been working on something related—Plandex[1], an open source AI coding agent that is particularly focused on large projects and complex tasks. I launched the v2 a few weeks ago and it is now running well. In terms of how to place it in the landscape, it’s more agentic than aider, more configurable and tightly controlled than…

How does it compare to ANUS and OpenHands?

Re: OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

#110

Post by cube2222 »

therealmarv wrote: post #108
newlisp wrote: post #105

Earlier quoted context omitted.

Why is using cursor with sonnet cheaper than using claude code?

probably because cursor is betting on many paying people not using their tool to full extend. Like people paying on their gym memberships but not going to the gym. Or they are burning VC money.

I've read anecdotal evidence that it uses tokens more sparingly than Claude Code - supported by the, likewise anecdotal, evidence that Claude Code is more effective in practice. However, that would be reasonable, as basically 1-3 sessions with Claude Code cost what a whole month of Cursor costs.
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