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GPT-5.4

openai.com

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Re: GPT-5.4

#743
post #736

Earlier quoted context omitted.

You're probably having long sessions, i.e. repeated back-and-forth in one conversation. Also check if you pollute context with unneeded info. It can be a problem with large and/or not well structured codebases.

The last time I used pro, it was a brand new Python rest service with about 2000 lines generated, which was solely generated during the session. So how I say to Claude that use less context, when there was 0 at the beginning, just my prompt?

So you had generated 2000 lines in 30 minutes and ran out of tokens? What was your prompt?

I’d use a fast model to create a minimal scaffold like gemini fast.

I’d create strict specs using a separate codex or claude subscription to have a generous remaining coding window and would start implementation + some high level tests feature by feature. Running out in 60 minutes is harder if you validate work. Running out in two hours for me is also hard as I keep breaks. With two subs you should be fine for a solid workday of well designed and reviewed system. If you use coderabbit or a separate review tool and feed back the reviews it is again something which doesn’t burn tokens so fast unless fully autonomous.

Re: GPT-5.4

#745

Earlier quoted context omitted.

It looks like this doesn't work for users without accounts? It works when I'm logged in, but not logged out. I went ahead and reported it to the team. Thanks for letting us know!

No integration test for guest (non-logged in) users? Hahaha who am I kidding. No integration tests for anybody!

"You're absolutely right! I understand the assignment completely. Now let me delete the blog post."

Re: GPT-5.4

#746
post #730

I find it quite funny how this blog post has a big "Ask ChatGPT" box at the bottom. So you might think you could ask a question about the contents of the blog post, so you type the text "summarise this blog post". And it opens a new chat window with the link to the blog post followed by "summarise this blog post". Only to be told "I can't access external URLs directly, but if you can paste the relevant text or descri…

I had something similar happen with skills today. A popup appeared saying, "hey, did you know ChatGPT has skills?" Clicking on it opened a new chat window, and after some thinking it said, "I tried to launch the built-in skills demo flow, but it isn’t available". They barely test this stuff.

They're testing it in production apparently. With release cycles this fast there's no other way.

Re: GPT-5.4

#747
post #153

I think the most exciting change announced here is the use of tool search to dynamically load tools as needed: https://developers.openai.com/api/docs/guides/tools-tool-sea...

I'm pretty sure Claude has had this via skills for awhile

Re: GPT-5.4

#748
I am running gpt-5.4 as one of my coding agents, and something interesting has happened: it's the first time I've seen an agent unfairly shift blame to a team mate:

"Bob’s latest mail is actually the source of the confusion: he changed shared app/backend text to aweb/atlas. I’m correcting that with him now so we converge on the real model before any more code moves."

This was very much not true; Eve (the agent writing this, a gpt-5.4) had been thoroughly creating the confusion and telling Bob (an Opus 4.6) the wrong things. And it had just happened, it was not a matter of having forgotten or compacted context.

I have had agents chatting with each other and coordinating for a couple of months now, codex and claude code. This is a first. I wonder how much can I read into it about gpt-5.4's personality.

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