GPT-5.5 • Hacker News Board

Re: GPT-5.5

#51

Post by 0x62 » Thu, Apr 23, 2026, 6:26 PM UTC

astlouis44 wrote: post #9

A playable 3D dungeon arena prototype built with Codex and GPT models. Codex handled the game architecture, TypeScript/Three.js implementation, combat systems, enemy encounters, HUD feedback, and GPT‑generated environment textures. Character models, character textures, and animations were created with third-party asset-generation tools The game that this prompt generated looks pretty decent visually. A big part of th…

FWIW I've been experimenting with Three.js and AI for the last ~3 years, and noticed a significant improvement in 5.4 - the biggest single generation leap for Three.js specifically. It was most evident in shaders (GLSL), but also apparent in structuring of Three.js scenes across multiple pages/components.

It still struggles to create shaders from scratch, but is now pretty adequate at editing existing shaders.

In 5.2 and below, GPT really struggled with "one canvas, multiple page" experiences, where a single background canvas is kept rendered over routes. In 5.4, it still takes a bit of hand-holding and frequent refactor/optimisation prompts, but is a lot more capable.

Excited to test 5.5 and see how it is in practice.

Re: GPT-5.5

#52

Post by thimabi » Thu, Apr 23, 2026, 6:26 PM UTC

Will we also see a GPT-5.5-Codex version of this model? Or will the same version of it be served both in the web app and in Codex?

Re: GPT-5.5

#53

Post by qingcharles » Thu, Apr 23, 2026, 6:26 PM UTC

BrokenCogs wrote: post #32

I'm here for the pelicans and I'm not leaving until I see one!

I've come to prompt pelicans and chew gum, and I'm all outta gum!

Re: GPT-5.5

#54

Post by motoboi » Thu, Apr 23, 2026, 6:26 PM UTC

tedsanders wrote: post #19

Just as a heads up, even though GPT-5.5 is releasing today, the rollout in ChatGPT and Codex will be gradual over many hours so that we can make sure service remains stable for everyone (same as our previous launches). You may not see it right away, and if you don't, try again later in the day. We usually start with Pro/Enterprise accounts and then work our way down to Plus. We know it's slightly annoying to have to…

Please next time start with azure foundry lol thanks!

Re: GPT-5.5

#55

Post by cbg0 » Thu, Apr 23, 2026, 6:26 PM UTC

baalimago wrote: post #25

Worth the 100% price increase over GPT-5.4?

For less than 10% bump across the benchmarks? Probably not, but if your employer is paying (which is probably what OAI is counting on) it's all good.

It's kind of starting to make sense that they doubled the usage on Pro plans - if the usage drains twice as fast on 5.5 after that promo is over a lot of people on the $100 plan might have to upgrade.

Re: GPT-5.5

#56

Post by wahnfrieden » Thu, Apr 23, 2026, 6:27 PM UTC

cmrdporcupine wrote: post #41

pixel_popping wrote: post #26

Earlier quoted context omitted.

can't wait! Thanks guys. PS: when you drop a new model, it would be smart to reset weekly or at least session limits :)

Limits were just reset two days ago.

And yet there was an outage last night

Re: GPT-5.5

#57

Post by SequoiaHope » Thu, Apr 23, 2026, 6:27 PM UTC

tom1337 wrote: post #35

applfanboysbgon wrote: post #4

If there's a bingo card for model releases, "our [superlative] and [superlative] model yet" is surely the free space.

Do "our [superlative] and [superlative] [product] yet" and you have pretty much every product launch

I love when Apple says they’re releasing their best iPhone yet so I know the new model is better than the old ones.

Re: GPT-5.5

#58

Post by not_math » Thu, Apr 23, 2026, 6:27 PM UTC

baalimago wrote: post #25

Worth the 100% price increase over GPT-5.4?

[dead]

Re: GPT-5.5

#59

Post by vunderba » Thu, Apr 23, 2026, 6:28 PM UTC

astlouis44 wrote: post #9

A playable 3D dungeon arena prototype built with Codex and GPT models. Codex handled the game architecture, TypeScript/Three.js implementation, combat systems, enemy encounters, HUD feedback, and GPT‑generated environment textures. Character models, character textures, and animations were created with third-party asset-generation tools The game that this prompt generated looks pretty decent visually. A big part of th…

I’ve had a lot of success using LLMs to help with my Three.js based games and projects. Many of my weird clock visualizations relied heavily on it.

It might not be a game engine, but it’s the de facto standard for doing WebGL 3D. And since it’s been around forever, there’s a massive amount of training data available for it.

Before LLMs were a thing, I relied more on Babylon.js, since it’s a bit higher level and gives you more batteries included for game development.

Re: GPT-5.5

#60

Post by jstummbillig » Thu, Apr 23, 2026, 6:29 PM UTC

cbg0 wrote: post #55

baalimago wrote: post #25

Worth the 100% price increase over GPT-5.4?

For less than 10% bump across the benchmarks? Probably not, but if your employer is paying (which is probably what OAI is counting on) it's all good. It's kind of starting to make sense that they doubled the usage on Pro plans - if the usage drains twice as fast on 5.5 after that promo is over a lot of people on the $100 plan might have to upgrade.

You are paying per token, but what you care about is token efficiency. If token efficiency has improved by as much as they claim it did (i.e. you need less tokens to complete a task successfully) all seems well.