GPT‑5.5 Instant

jflskajfsd

Big increase in intelligence at the cheapest price

dude250711

Nice, something actually usable and at an affordable price.

tngranados

Looks like it gives more readable answer, hopefully it does, the regular free ChatGPT modal right now is insufferable.

simianwords

I wonder what's the difference between this and GPT 5.5 thinking with zero thinking effort? Interesting product decision to have different models.

Rapzid

GPT-5.3-instant wasn't even close to instant. Even with lowest effort it's like 3-4x best case TTFT compared to GPT-4.1 I know, I know.. But they are the one's labeling them "instant". There is a real need for a refresh on the datacenter workhorse that is GPT-4.1 Also, how TF are you going to have an "instant" model release and not mention the latency characteristics at all?

BoxedEmpathy

Is this available on the API? I didn't see instant. I see chat?

OutOfHere

Why can't they be more consistent about releasing the Insant and Thinking models at the same time for each version number? Why all this duplicative drama?

hank2000

Yall want to see instant? Check out chatjimmy.ai blow your mind. I’m not affiliated. But the things it unlocks in a product I’m building are mind blowing. Millisecond inference even on much older models will change the whole game. Enough to run inference on every. Single. API call. Without notable disruption. This sh*t is wild.