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OpenAI has just released GPT-5-Codex specifically for coding! Friendly reminder that they've a VS Code extension that you can use with your ChatGPT account at NO additional cost. Basically a strong alternative to Claude Code or Cursor. (Setup below)

262,048 views • 1 year ago •via X (Twitter)

48 Comments

Paul Couvert's profile picture
Paul Couvert1 year ago

1. Install the extension - Open the Extensions tab in VS Code - Search for "Codex" in the search bar - Install "Codex – OpenAI’s coding agent" by OpenAI

Paul Couvert's profile picture
Paul Couvert1 year ago

2. Use Codex At the bottom of Codex, you can choose different options: - Local or cloud to either edit your code locally or assign a task to the web version of Codex - Agent mode to give it full permission, with approval, or just chat with your project - The model used to choose between GPT-5 or the new GPT-5-Codex in low/medium/high versions

Paul Couvert's profile picture
Paul Couvert1 year ago

And here're the rates for Plus, Pro and Business accounts ↓ 30-150 messages /5 hours depending on the tasks using Plus... Which is enough for a lot of projects!

د. وسام العظَمة 𝕯𝖗. 𝖂𝖎𝖘𝖘𝖆𝖒's profile picture
د. وسام العظَمة 𝕯𝖗. 𝖂𝖎𝖘𝖘𝖆𝖒1 year ago

Very well, but I think Claude Code is better

Paul Couvert's profile picture
Paul Couvert1 year ago

Probably depends on the use case? Many of us have switched.

Gabriel Peal's profile picture
Gabriel Peal1 year ago

FYI, you can move Codex to the right sidebar just in case you weren't aware.

Paul Couvert's profile picture
Paul Couvert1 year ago

Nice, will do. Thanks for sharing!

Csaba Kissi's profile picture
Csaba Kissi1 year ago

Looks cool, but I'll stick to @warpdotdev. It works perfectly for me, and I can use all the LLMs I prefer to use.

Paul Couvert's profile picture
Paul Couvert1 year ago

Never tried it. Thanks for the feedback!

Yinan Na's profile picture
Yinan Na1 year ago

Good that it's included with ChatGPT but curious how well it actually works compared to tools built specifically for coding workflows

Paul Couvert's profile picture
Paul Couvert1 year ago

Give it a try. Many are switching from claude code to codex actually.

Farhan's profile picture
Farhan1 year ago

I am better stick to claude code 😃

Paul Couvert's profile picture
Paul Couvert1 year ago

Hmm do you have better results with it? Which languages?

Fahim's profile picture
Fahim1 year ago

how’s the rate limits with GPT-5-Codex?

Malek's profile picture
Malek1 year ago

A STRONG ? did you try it ? CC is miles ahjead.

Paul Couvert's profile picture
Paul Couvert1 year ago

Yes, I'm using it daily along Grok code in Cline and Gemini CLI. CC is way more expensive and the cost difference isn't justified in my usage.

Jonathan lora's profile picture
Jonathan lora1 year ago

Are you using Windows? If so, does it work well without WSL?

Paul Couvert's profile picture
Paul Couvert1 year ago

Yes, Windows user here. I was using the CLI in WSL before because the extension was clunky but now it seems to work pretty well in the ide and without WSL.

Jonathan lora's profile picture
Jonathan lora1 year ago

Oh ok, I've been using Codex IDE for a while now too, but I wanted to know someone else's experience and if it was worth using WSL. Thanks by the way 😊

VR's profile picture
VR1 year ago

Trying it now, cool !

Paul Couvert's profile picture
Paul Couvert1 year ago

Let me know how it goes!

Agam Chaudhary's profile picture
Agam Chaudhary1 year ago

A coding model tuned for both quick iterations and long refactors inside VS Code could change daily developer flow in a big way. It makes me wonder how fast teams will shift from add on copilots to fully integrated coding partners. What shift do you expect first?

Arman's profile picture
Arman1 year ago

I’m still happy with copilot

Shreyas C's profile picture
Shreyas C1 year ago

I'll use codex whenever they let me actually accept changes

Octo's profile picture
Octo1 year ago

Vs code extension is broken for windows

Paul Couvert's profile picture
Paul Couvert1 year ago

It was for me as well, I was using the CLI in the meantime... but now it works for some reason.

Octo's profile picture
Octo1 year ago

That good to know Paul. Have a backlog of things to fix.

Mikler's profile picture
Mikler1 year ago

Claude code works with normal IDE (JetBrains). Codex does not :(

Abdulmuiz Adeyemo's profile picture
Abdulmuiz Adeyemo1 year ago

Now 10x better at thinking and coding for you This is amazing

Anonymouse's profile picture
Anonymouse1 year ago

I’ve tried most every AI coding accelerator. Claude Code is a class of it’s own….the workflow is the secret sauce, and it’s very decent.

Steve Shelby's profile picture
Steve Shelby1 year ago

I've updated and am running it on two projects. The new thing is the deterministic thinking mode. It spends more time on more difficult tasks, creates better dynamic TODOS, and works longer on more tasks. 5-medium was good all by itself, and this is a strong upgrade.

Johnson's profile picture
Johnson1 year ago

GPT sucks at coding!

Aleksandr Kurochkin's profile picture
Aleksandr Kurochkin8 months ago

Check out self-hosted options. Total game changer for me.

RektOnChain's profile picture
RektOnChain1 year ago

Been using the VS Code extension for a few weeks and it's genuinely impressive. The integration feels seamless and it handles most coding tasks without breaking a sweat

dirtydata's profile picture
dirtydata1 year ago

easily a replacement if you're resourceful enough

Paul Couvert's profile picture
Paul Couvert1 year ago

Replacement of CC/cursor? If so yes, 100%.

Miquel's profile picture
Miquel1 year ago

Useless... I've been paying for "plus" for a long time. I sponsor them, and they're giving a nonsense limit on it. After one day of using, a limit.

Kumar Sharma's profile picture
Kumar Sharma1 year ago

nice, another option on the table. would be cool to see how it measures up alongside @QodoAI in VS Code. tools are evolving so fast it's hard to keep up.

🅰️lgoPapa's profile picture
🅰️lgoPapa1 year ago

It seems recently Grok has reduced context length a lot. Earlier it used to easily read upto 1000 lines of code now its just excerpts & grok says i have the truncated file. Anyone else facing it ? Chatgpt has somehow improved a lot more than Grok at code.

iTCart's profile picture
iTCart1 year ago

GPT-5-Codex is a game-changer for developers. Excited to see how AI is making coding faster, smarter, and more collaborative!

MP's profile picture
MP1 year ago

just getting into the coding side i use claude via my command prompt is this possible with chatgpt?

Axly's profile picture
Axly1 year ago

@elonmusk when is something like this coming to Grok? Add Grok Code with an IDE and no one will need to use any other product.

MoD's profile picture
MoD1 year ago

hasn't this been out for a bit? i've been using codex from the cli for a few days now i really dig it

Rob Rider's profile picture
Rob Rider1 year ago

How does this compare to Visual Studio Code + Copilot Pro+ + GPT5? Your example seems much faster, but I'm presuming you sped it up?

Dirk Nötzel's profile picture
Dirk Nötzel1 year ago

What about using it in Visual Studio? Is it possible too?

Boston's profile picture
Boston1 year ago

Why did you speed up the video to make it look more impressive? Misleading

Vincent Skerved's profile picture
Vincent Skerved1 year ago

Testing the Codex plugin. Seems like I need to approve every move. I guess I am missing something, but it's not usable as is for me.

Arindam Majumder 𝕏's profile picture
Arindam Majumder 𝕏1 year ago

Wow This looks Amazing

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