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GPT-5.3-Codex

openai.com

21–30 of 634 posts

Re: GPT-5.3-Codex

#21

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.

Re: GPT-5.3-Codex

#22
When 2 multi billion giants advertise same day, it is not competition but rather a sign of struggle and survival. With all the power of the "best artificial intelligence" at your disposition, and a lot of capital also all the brilliant minds, THIS IS WHAT YOU COULD COME UP WITH?

Interesting

Re: GPT-5.3-Codex

#23
So can I use this from Opencode? Because Anthropic started to enforce their TOS to kill the Opencode integration

Re: GPT-5.3-Codex

#24

> GPT‑5.3-Codex was co-designed for, trained with, and served on NVIDIA GB200 NVL72 systems. We are grateful to NVIDIA for their partnership. This is hilarious lol

How so?

Re: GPT-5.3-Codex

#25

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 .

They're also coordinating around Chinese New Year to compete with new releases of the major open/local models.

Year of the Pelican!

Re: GPT-5.3-Codex

#26
post #24

> GPT‑5.3-Codex was co-designed for, trained with, and served on NVIDIA GB200 NVL72 systems. We are grateful to NVIDIA for their partnership. This is hilarious lol

How so?

They're on shaky ground right now https://arstechnica.com/information-technology/2026/02/five-...

Re: GPT-5.3-Codex

#27

When 2 multi billion giants advertise same day, it is not competition but rather a sign of struggle and survival. With all the power of the "best artificial intelligence" at your disposition, and a lot of capital also all the brilliant minds, THIS IS WHAT YOU COULD COME UP WITH? Interesting

What happened to you?

Re: GPT-5.3-Codex

#29
post #24

> GPT‑5.3-Codex was co-designed for, trained with, and served on NVIDIA GB200 NVL72 systems. We are grateful to NVIDIA for their partnership. This is hilarious lol

How so?

Its kind of a suck up that more or less confirms the beef stories that were floating around this past week.

In case you missed it. For example:

Nvidia's $100 billion OpenAI deal has seemingly vanished - Ars Technica

https://arstechnica.com/information-technology/2026/02/five-...

Specifically this paragraph is what I find hilarious.

> According to the report, the issue became apparent in OpenAI’s Codex, an AI code-generation tool. OpenAI staff reportedly attributed some of Codex’s performance limitations to Nvidia’s GPU-based hardware.

Re: GPT-5.3-Codex

#30
Anthropic mostly had an advantage in speed. It feels like with a 25% increase in speed with Codex 5.3, they are now losing that advantage as well.
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