Personally, I would say very likely, to be honest. I gotta go through this a little more, but I actually use 5.5 codex an obscene amount, and I almost never use it for reasoning anymore. It's not even in the same galaxy as far as actually taking out the thinking and using GPT-5.5 or even Claude and then coming back and giving it the reasoning. Blah blah blah, it's the same model. Well, let me tell you, no, it's not, for several reasons, and the delta on intelligence is pretty staggering.

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benjiro29 5 hours ago | parent | next [-]

Care to explain what you mean by that?

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criley2 4 hours ago | parent [-]

I'm struggling as well to understand, and I think perhaps they mean they use ChatGPT website with GPT-5.5+reasoning for problem solving, and paste the output into Codex CLI/App. I think they're saying that letting Codex CLI/App problem solve with GPT-5.5 isn't as effective. Essentially that the web harness is superior to the agentic engineering harness for problem solving?

Not sure if I agree, but I do happen to use a fair bit of web harness as well, just because I find it to be much more effective at web search and a different type of reasoning. So I must agree a little or else I wouldn't do that.

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jatora 3 hours ago | parent [-]

I assume they are lying and still think you can use gpt 5.5 non-codex within codex cli. And they outed themselves. A lot of nonsense. And the very poor communication skills just seem like the typical chinese astroturfing you see pretty often now when discussing OAI/Claude.

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criley2 2 hours ago | parent [-]

See, this is part of the confusion. There is no such thing as "GPT-5.5-codex". The last codex-branded model was "GPT-5.3-codex". Starting with "GPT-5.4" the main model handles agentic engineering and they did not release a coding model.

Both the web harness and codex app/cli use "GPT-5.5".

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jatora 2 hours ago | parent [-]

haha woops. guess im the chinaman now

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fragmede 2 hours ago | parent [-]

What do you mean by that? Seems kinda racist.

	▲	redsocksfan45 an hour ago \| parent [-]
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dimitrios1 4 hours ago | parent | prev | next [-]

I know that these types of comments are not really popular here, but this struck a chord with me because I feel the same. They aren't remotely close.

I have codex right now purely because they gave me a month free of ChatGPT Pro, so I have been using it in between my usage resets with claude. Since it's "free money" for me I have been using it exclusively on xHigh.

One of my most frequent prompts is "hey codex worked on ____, but it didn't quite hit the mark, can we review the work..."

Yes, part of this is normal even within the same model -- you have the highest power model review the work for correctness, refactoring opportunities, and so on, but man I tell you, I don't know what it is about codex, this is obviously one guy's anecdote -- same prompting style, same repository documentation ala MD files, same skills, way different results.

All that to say, maybe the bug report is on to something here, and it can be fixed.

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m101 5 hours ago | parent | prev [-]

What?