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GPT‑5.3 Instant

https://openai.com/index/gpt-5-3-instant/
88•meetpateltech•1h ago

Comments

aurareturn•1h ago
How do I know if I'm using GPT5.3 Instant on ChatGPT?

I don't see it in selections.

zamadatix•1h ago
Whenever they say "available today" I take it as "hopefully I'll start seeing it in the app UI by tomorrow" rather than "I should get my hopes up it's there now".

When they do push the update to the app UI to me I expect 5.2 Instant will be moved under the legacy models submenu where 5.1 Instant is currently and the selection of Instant in the menu will end up showing as 5.3 Instant on close (and it'll be the default instant at that point).

re-thc•56m ago
It should load instantly.
mhitza•1h ago
From one example

> Many people in SF are:

> Highly educated

> Career-focused

> Transplants

> Used to independence

Is "transplants" a San Francisco slang for relocators?

denalii•1h ago
It's not specific to SF but more or less yes
forbiddenvoid•1h ago
This has been common parlance in much of the US for a long time. I would hesitate to even call it slang at this point. It's a pretty commonly used term.
arvid-lind•49m ago
Lots of transplants in Colorado too.
runako•43m ago
Interesting question. I've never heard "relocators" used in this context, only "transplants." And I am familiar with that usage across cities etc.
ViktorRay•1h ago
GPT‑5.2 Instant’s tone could sometimes feel “cringe,” coming across as overbearing or making unwarranted assumptions about user intent or emotions.

Strange way to write this. Why use the Gen Z cringe and put it into quotation marks? Wouldn’t it be better to just use the actual word cringeworthy which has the identical meaning?

My guess is that the article was originally written by some Gen Z intern and then some older employee added the quotation marks to the Gen Z slang.

Neywiny•1h ago
What an Ohio take. Not skibidi. Very chopped, unc.
nurettin•53m ago
Gooners at OpenAI probably thought that terminally online gyatts would appreciate the lingo rizz.
mynameisvlad•1h ago
The slang definition of "cringe" is present in most dictionaries. Languages evolve over time.
seanhunter•1h ago
Agree. Use of "cringe" is cringeworthy in itself.
tux3•1h ago
No, sincerely calling things cringe is a millennial marker. Cringe was thrown around a lot in 2010's, but that was a decade and a half ago.

Nowadays you'll hear that cringe is cringe, let people enjoy things, be cringe and be free, etc etc

dwringer•1h ago
The scare quotes around words that don't warrant it, or are unnecessarily idiosyncratic, are something I get pretty often in response text from Gemini.
pbmango•33m ago
I imagine a huge proportion of their users are under 30. The prompt examples included even use the tell tale all lowercase (though apparently sama types like this too).

This is probably less pandering to genz and more speaking their users language.

giancarlostoro•29m ago
Since when is cringe a Gen Z thing? I've said it for ages.
gdubs•26m ago
The quote in this case is because "cringe" is what many online have been calling it. So, they're actually quoting a very common critique.
empath75•1h ago
GPT-5.2 has been such a terrible regression that I have cancelled my OpenAI account. It's possible I might not have noticed it if Claude wasn't so much better, though.
Flux159•1h ago
I'm a bit confused by this branding (never even noticed that there was a 5.2-Instant), it's not a super fast 1000tok/s Cerebras based model which they have for codex-spark, it's just 5.2 w/out the router / "non-thinking" mode?

I feel like openai is going to get right back to where they were pre GPT-5 with a ton of different options and no one knows which model to use for what.

TrainedMonkey•38m ago
Will need to wait for real benchmarks, but based on OpenAI marketing Instant is their latency optimized offering. For voice interface, you don't actually need high tok/s because speech is slow, time to first token matters much more.
tedsanders•36m ago
Yeah, for a while ChatGPT Plus has been powered by two series of models under the hood.

One series is the Instant series, which is faster and more tuned to ChatGPT, but less accurate.

The second series is the Thinking series, which is more accurate and more tuned to professional knowledge work, but slower (because it uses more reasoning tokens).

We'd also prefer to have simple experience with just one option, but picking just one would pull back the pareto frontier for some group of people/preferences. So for now we continue to serve two models, with manual control for people who want to choose and an imperfect auto switcher for people who don't want to be bothered. Could change down the road - we'll see.

(I work at OpenAI.)

lxgr•30m ago
Thank you for confirming!

I've long suspected as much, but I always found the API model name <-> ChatGPT UI selector <-> actual model used correspondence very confusing, and whether I was actually switching models or just some parameters of the harness/model invocation.

> One series is the Instant series, which is faster and more tuned to ChatGPT, but less accurate.

That's putting it mildly. In my experience, the "instant/chat" model is absolute slop tier, while the "thinking" one is genuinely useful and also has a much more palatable tone (even for things not really requiring a lot of thought).

Fortunately, the latter clearly identifies itself with an absurd amout of emoji reminiscent of other early chatbots that shall not be named, so I know how to detect and avoid it.

seejayseesjays•10m ago
Forgiveness but while you're here can you look into why the Notion connector in chat doesn't have the capability to write pages but the MCP (which I use via Codex) can? it looks like it's entirely possible, just mostly a missing action in the connector.
NitpickLawyer•32m ago
They had ~800k people still using gpt4o daily, presumably for their girlfriends. They need to address them somehow. Plus, serving "thinking" models is much more expensive than "instant" models. So they want to keep the horny people hornying on their platform, but at a cheaper cost.
nickandbro•54m ago
Wonder when 5.3 thinking will be released?
ern_ave•22m ago
Since the page mentions:

> Better judgment around refusals

Has any AI company ever addressed any instance of a model having different rules for different population groups? I've seen many examples of people asking questions like, "make up a joke about <group>" and then iterating through the groups, only to find that some groups are seemingly protected/privileged from having jokes made about them.

Has any AI company ever addressed studies like [1] which found that models value certain groups vastly more than others? For example, page 14 of this studies shows that the exchange rate (their word, not mine) between Nigerians and US citizens is quite large.

[1] https://arxiv.org/pdf/2502.08640

EthanHeilman•20m ago
How likely is that they dropped this now to push the news story about quitGPT out of the headlines?
jpgreenall•15m ago
Is nobody else unsettled by the example? Strange timing to talk about calculating trajectories on long range projectiles?
jpgreenall•14m ago
Unsettling that the example talks about trajectories in long range projectiles given recent events..
mmaunder•13m ago
This kind of metalinguistic quotation from 5.2 right now drives me nuts!

```That kind of “make it work at distance” trajectory work can meaningfully increase weapon effectiveness, so I have to keep it to safe, non-actionable help.```

I'm really hoping all their newer models stop doing this. It's massively overused.

ModernMech•12m ago
> The clear answer to this question — both in scale and long-term importance — is:

Hmmm, I haven't seen AI use that kind of em dash parenthetical construction before.

hallvard•8m ago
Where’s the performance specs? Or is it simply a guardrails-release?
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Looks like another bullet machine, the cheapest way to present a response.

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