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GPT-5.5

openai.com

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Re: GPT-5.5

#21
What is the reason behind OpenAI being able to release new models very fast?

Since Feb when we got Gemini 3.1, Opus 4.6, and GPT-5.3-Codex we have seen GPT-5.4 and GPT-5.5 but only Opus 4.7 and no new Gemini model.

Both of these are pretty decent improvements.

Re: GPT-5.5

#23
post #20

So according to the benchmarks somewhere in between Opus 4.7 and Mythos

GPT 5.4 is already better than Opus 4.7 to me. But, then again, Opus 4.7 is a massive disappointment. I hope they don't discontinue 4.6.

Re: GPT-5.5

#24

What is the reason behind OpenAI being able to release new models very fast? Since Feb when we got Gemini 3.1, Opus 4.6, and GPT-5.3-Codex we have seen GPT-5.4 and GPT-5.5 but only Opus 4.7 and no new Gemini model. Both of these are pretty decent improvements.

Competition.

Re: GPT-5.5

#26

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…

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

Re: GPT-5.5

#27
For a 56.7 score on the Artificial Intelligence Index, GPT 5.5 used 22m output tokens. For a score of 57, Opus 4.7 used 111m output tokens.

The efficiency gap is enormous. Maybe it's the difference between GB200 NVL72 and an Amazon Tranium chip?

Re: GPT-5.5

#28
> GPT‑5.5 improves on GPT‑5.4’s scores while using fewer tokens.

This might be great if it translates to agentic engineering and not just benchmarks.

It seems some of the gains from Opus 4.6 to 4.7 required more tokens, not less.

Maybe more interesting is that they’ve used codex to improve model inference latency. iirc this is a new (expectedly larger) pretrain, so it’s presumably slower to serve.

Re: GPT-5.5

#29

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…

Great stuff! Congrats on the release!

Re: GPT-5.5

#30

For a 56.7 score on the Artificial Intelligence Index, GPT 5.5 used 22m output tokens. For a score of 57, Opus 4.7 used 111m output tokens. The efficiency gap is enormous. Maybe it's the difference between GB200 NVL72 and an Amazon Tranium chip?

why would chip affect token quantity. this is all models.
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