GPT-5.3-Codex • Hacker News Board

Re: GPT-5.3-Codex

#91

Post by manquer » Thu, Feb 05, 2026, 6:53 PM UTC

observationist wrote: post #71

minimaxir wrote: post #2

I remember when AI labs coordinated so they didn't push major announcements on the same day to avoid cannibalizing each other. Now we have AI labs pushing major announcements within 30 minutes .

The labs have fully embraced the cutthroat competition, the arms race has fully shed the civilized facade of beneficient mutual cooperation. Dirty tricks and underhanded tactics will happen - I think Demis isn't savvy in this domain, but might end up stomping out the competition on pure performance. Elon, Sam, and Dario know how to fight ugly and do the nasty political boardroom crap. 26 is gonna be a very dramatic y…

>civilized facade of mutual cooperation

>Dirty tricks and underhanded tactics

As long the tactics are legal ( i.e. not corporate espionage, bribes etc), the no holds barred full free market competition is the best thing for the market and the consumers.

Re: GPT-5.3-Codex

#92

Post by ecshafer » Thu, Feb 05, 2026, 6:53 PM UTC

Funny that this and Opus 4.6 released within minutes of each other. Each showing similar score improvements. Each claiming to be revolutionary.

Re: GPT-5.3-Codex

#93

Post by cedws » Thu, Feb 05, 2026, 6:54 PM UTC

minimaxir wrote: post #2

I remember when AI labs coordinated so they didn't push major announcements on the same day to avoid cannibalizing each other. Now we have AI labs pushing major announcements within 30 minutes .

I wish they’d just stop pretending to care about safety, other than a few researchers at the top they care about safety only as long as they aren’t losing ground to the competition. Game theory guarantees the AI labs will do what it takes to ensure survival. Only regulation can enforce the limits, self policing won’t work when money is involved.

Re: GPT-5.3-Codex

#94

Post by __mharrison__ » Thu, Feb 05, 2026, 6:54 PM UTC

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.

Re: GPT-5.3-Codex

#95

Post by rsanek » Thu, Feb 05, 2026, 6:54 PM UTC

Mond_ wrote: post #21

kingstnap wrote: post #10

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

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.

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.

Re: GPT-5.3-Codex

#96

Post by foft » Thu, Feb 05, 2026, 6:54 PM UTC

Having used codex a fair bit I find it really struggles with … almost anything. However using the equivalent chat gpt model is fantastic. I guess it’s a matter of focus and being provided with a smaller set of code to tackle.

Re: GPT-5.3-Codex

#97

Post by ffitch » Thu, Feb 05, 2026, 6:55 PM UTC

> our team was blown away > by how much Codex was able > to accelerate its own development

they forgot to add “Can’t wait to see what you do with it”

Re: GPT-5.3-Codex

#98

Post by BoredPositron » Thu, Feb 05, 2026, 6:55 PM UTC

wasmainiac wrote: post #50

jahsome wrote: post #35

Earlier quoted context omitted.

Another day, another hn thread of "this model changes everything" followed immediately by a reply stating "actually I have the literal opposite experience and find competitor's model is the best" repeated until it's time to start the next day's thread.

[flagged]

When you keep his ramblings on twitter or company blog in mind I bet he is a shit poster here.

Re: GPT-5.3-Codex

#99

Post by Havoc » Thu, Feb 05, 2026, 6:55 PM UTC

morleytj wrote: post #69

The behind the scenes on deciding when to release these models has got to be pretty insanely stressful if they're coming out within 30 minutes-ish of each other.

It’s also functionally not likely without some sort of insider knowledge or coordination

Re: GPT-5.3-Codex

#100

Post by koakuma-chan » Thu, Feb 05, 2026, 6:56 PM UTC

nickthegreek wrote: post #49

maxpert wrote: post #36

Is this me or Sam is being absolute sore loser he is and trying to steal Opus thunder?

Why is it loser? He very well could be a sore winner here.

OpenAI is still the only AI company that has structured outputs. Anthropic now supports JSON schema but you can't specify array length.