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Posted by meetpateltech 12 hours ago

GPT-5.3-Codex(openai.com)
1170 points | 448 commentspage 4
sidgarimella 8 hours ago|
Many are saying codex is more interactive but ironically I think that very interactivity/determinism works best when using codex remotely as a cloud agent and in highly async cases. Conversely I find opus great locally, where I can ram messages into it to try to lever its autonomy best (and interrupt/clean up)
vatsachak 9 hours ago||
AI designed websites are so easy to spot that I need to actively design my UI so that it doesn't look AI
jdthedisciple 12 hours ago||
Gotta love how the game demo's page title is "threejs" – I guess the point was to demo its vibe-coding abilities anyway, but yea..
Robin_f 12 hours ago||
Anthropic mostly had an advantage in speed. It feels like with a 25% increase in speed with Codex 5.3, they are now losing that advantage as well.
smith7018 11 hours ago|
I just asked Opus 4.6 to debug a bug in my current changes and it went for 20 minutes before I interrupted it. Take that as you will.
bgirard 10 hours ago|||
Doesn't feel like a useful data point without more context. For some hard bugs I'd be thrilled to wait 30 minutes for a fix, for a trivial CSS fix not so much. I've spent weeks+ of my career fix single bugs. Context is everything.
smith7018 10 hours ago||
Sure, but I've never experienced a 20 minute wait with CC before. It was an architectural question but it would have taken a couple minutes with a definitive answer on 4.5.
mrcwinn 2 hours ago|||
As they point out in their blog post, 4.6 intentionally thinks longer, but you can adjust it from the CLI.
tyfon 11 hours ago||
I'm having a hard time parsing the openai website.

Anyone know if it is possible to use this model with opencode with the plus subscription?

mbil 5 hours ago|
It's possible to use opencode with the plus subscription using this plugin for auth [0][1]. Just tested this and it appears to work.

[0]: https://opencode.ai/docs/ecosystem/#:~:text=Use%20your%20Cha...

[1]: https://github.com/numman-ali/opencode-openai-codex-auth

__mharrison__ 11 hours ago||
I never really used Codex (found it to slow) just 5.2, which I going to be an excellent model for my work. This looks like another step up.

This week, I'm all local though, playing with opencode and running qwen3 coder next on my little spark machine. With the way these local models are progressing, I might move all my llm work locally.

andix 11 hours ago||
I think codex got much faster for smaller tasks in the last few months. Especially if you turn thinking down to medium.
raffkede 10 hours ago||
I think the slow feeling is a UI thing in codex
__mharrison__ 8 hours ago||
I realize my comment was unclear. I use codex the CLI all the time, but generally with this invocation: `codex --full-auto -m gpt-5.2`

However, when I use the 5.2codex model, I've found it to be very slow and worse (hard to quantify, but I preferred straight-up 5.2 output).

GenerWork 12 hours ago||
I find it very, very interesting how they demoed visuals in the form of the “soft SaaS” website and mentioned how it can do user research. Codex has usually lagged behind Claude and Gemini when it comes to UX, so I’m curious to see if 5.3 will take the lead in real world use. Perhaps it’ll be available in Figma Make now?
brokencode 12 hours ago|
I’m hoping they add better IDE integration to track active file and selection. That’s the biggest annoyance I have in working with Codex.
gwd 12 hours ago||
gpt-5.3-codex isn't available on the API yet. From TFA:

> We are working to safely enable API access soon.

kingstnap 12 hours ago||
That was fast!

I really do wonder whats the chain here. Did Sam see the Opus announcement and DM someone a minute later?

Mond_ 12 hours ago||
OpenAI has a whole history of trying to scoop other providers. This was a whole thing for Google launches, where OpenAI regularly launched something just before Google to grab the media attention.
rsanek 11 hours ago||
Some recent examples:

GPT-4o vs. Google I/O (May 2024): OpenAI scheduled its "Spring Update" exactly 24 hours before Google’s biggest event of the year, Google I/O. They launched GPT-4o voice mode.

Sora vs. Gemini 1.5 Pro (Feb 2024): Just two hours after Google announced its breakthrough Gemini 1.5 Pro model, Sam Altman tweeted the reveal of Sora (text-to-video).

ChatGPT Enterprise vs. Google Cloud Next (Aug 2023): As Google began its major conference focused on selling AI to businesses, OpenAI announced ChatGPT Enterprise.

NewsaHackO 10 hours ago|||
I assume some sort of corporate espionage. This is high stakes after all
maxpert 12 hours ago||
Tell me that you are hurt without telling me that you are hurt this applies to Sam right now
imasliev 12 hours ago|
GPT-5.2-Codex was so cool at price/value rate, hope 5.3 will not ruin the race with claude
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