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GPT-5.6

openai.com

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Re: GPT-5.6

#701

Post by herpdyderp »

nilkn wrote: post #97
Syntaf wrote: post #6

Ok long time Claude Code user here; lately I've started to realize there's other great models out there I should be trying, but I'm hesitant to leave Claude Code behind for something new. What's the consensus today on codex vs claude code, does it really matter anymore?

Codex has arguably been better than Claude Code for months now, but it's flown under the radar because it just didn't capture the same viral marketing effect and OpenAI in general has had more optics / PR issues than Anthropic amongst the online developer crowd. I use the word "better" not in the sense that the underlying GPT models are fundamentally smarter or more intelligent, but rather that as a product Codex is…

I keep trying Codex and it constantly produces terrible output compared to Opus. I don’t understand how my results are so bad?

Re: GPT-5.6

#702

Post by echelon »

navigate8310 wrote: post #515
10xDev wrote: post #234

Earlier quoted context omitted.

Seeing the dramatic differences in scores just going from high to xhigh is just another demonstration of the bitter lesson: Just keep scaling search and learning. We are probably going to need a lot more GPUs.

There goes my plan to buy a PC for the next decade

The whole of knowledge work is being automated. We've barely begun to see the GPU build out. This is just the start.

I'd imagine they're going to 10x this, maybe 100x this.

Re: GPT-5.6

#703

Post by [deleted] »

HarHarVeryFunny wrote: post #467

Not specific to OpenAI / Codex, but I'm curious what people are doing to protect themselves from any destructive actions by their coding agents? Just install and pray? Explicity approve all actions? Reconfigure for safety? Run in a sandbox (Docker) ?

[deleted]

Re: GPT-5.6

#704

Post by mdgld »

__mharrison__ wrote: post #549
minimaxir wrote: post #26

The developer's guide ( https://developers.openai.com/api/docs/guides/latest-model ) has some interesting semantic tips for using the model: > Intent understanding: GPT-5.6 can better infer the user’s underlying goal and intended level of work without you specifying every step. Continue to state important constraints, approval boundaries, and success criteria explicitly. > Original image detail: GPT-5.6 preserves the…

Serious question: what is a short prompt? (For that matter at what point is it "long"? And does the rest of the context matter? Should it be short too?)

Why waste time say lot word when few word do trick?

Re: GPT-5.6

#705

Post by maxloh »

maxloh wrote: post #117
Syntaf wrote: post #6

Ok long time Claude Code user here; lately I've started to realize there's other great models out there I should be trying, but I'm hesitant to leave Claude Code behind for something new. What's the consensus today on codex vs claude code, does it really matter anymore?

I wish they open source their desktop app and built-in skills one day. That would be a final blow for me.

Edit: Found that their built-in skills are actually open-source: https://github.com/openai/plugins

Re: GPT-5.6

#706

Post by mdgld »

loufe wrote: post #561
swatcoder wrote: post #336

Earlier quoted context omitted.

> can better infer the user’s underlying goal and intended level of work This is a trap. It's the optimistic fallacy that poisons all "consumer scale" machine learning products and what's going to effectively ruin these models as they keep chasing it in the same way that web queries were ruined, social media feeds were ruined, and media recommenders were ruined. For the vendor, optimizing metrics across their whole u…

I agree to an extent but it needs to be balanced. Receiving a half-baked, extremely verbose recap of thinking on benign details with Opus 4.8 or GPT 5.5 feels like an extraordinary loss of quality of experience compared with fable 5. Yes it shares less, but I think the trade-off is you pay less in tokens and hopefully it's truly just not needing to say things because it truly does just better get what you're saying,…

Same, I think you both have great points. Idk how you can debug effectively (the model itself) without reasoning traces

Re: GPT-5.6

#707

Post by throwaway219450 »

wwind123 wrote: post #127
Syntaf wrote: post #6

Ok long time Claude Code user here; lately I've started to realize there's other great models out there I should be trying, but I'm hesitant to leave Claude Code behind for something new. What's the consensus today on codex vs claude code, does it really matter anymore?

I've been using Claude Code, Codex, Gemini (now Antigravity) at the same time for half year now, ever since I dipped my toe into agentic coding. I'd say in general Claude Code and Codex are equally powerful, Gemini is lagging behind. One thing I appreciate with Codex is, OpenAI nowadays sometimes just gives you quota resets you can bank, so when you use up weekly quota before the week ends, you could just reset the q…

I’ve found Codex’s overage to be much better value than Claude’s. A monthly $10 budget is plenty for my backup Codex usage, but on Claude Code that would be gone in a couple of days.

Re: GPT-5.6

#708

Post by w4yai »

matheusmoreira wrote: post #672
beaker52 wrote: post #596

We Openly hate OpenAI because they’re not very Open but we secretly hope they win against not-open-at-all Anthropic.

I openly hope the chinese labs distilling them into open weights win.

Yup. I'm done with US companies. Let's go China !

Re: GPT-5.6

#709

Post by wj »

zahlman wrote: post #659
senko wrote: post #439

I love testing the new models by asking them to code a toy RTS game. Here's what Terra did: https://senko.net/vibecode-bench/2026/rts-gpt-5.6-terra.html (one try, in codex app, xhigh effort) Comparing this to other models, I find it similar to GPT-5.5 and a bit behind Sonnet 5. You can see how other models fared here: https://senko.net/vibecode-bench/ (you can also fetch the prompt and the the 5.6 Terra resulting cod…

Could we see the prompts, though?

I did a quick comparison of models a couple of months ago by giving it a MYTXTADV.BAS file and give them all the same prompt to create a sprite-based version of a text adventure game I wrote in Basic over 30 years ago.

It was interesting to see where the approaches were similar and where they diverged.

Re: GPT-5.6

#710

Post by ra0x3 »

Syntaf wrote: post #6

Ok long time Claude Code user here; lately I've started to realize there's other great models out there I should be trying, but I'm hesitant to leave Claude Code behind for something new. What's the consensus today on codex vs claude code, does it really matter anymore?

My final answer on this is that we just can't say anything affirmative because all of our projects/codebases are completely different. I've gone back and forth on the "codex vs claude" being better, and while I'm currently of the believe that Claude is superior, I understand that might be the case for _my_ particular set of projects and _my_ personal way of interacting with the model.
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