OpenAI GPT-4.5 System Card [pdf]

Looks like o1 performance without reasoning. Pretty good but seems reasonable that they didn’t want to call this 5 as they’ve already got a product out there that is as performant.

Another notable thing here is a big drop in hallucination rate as measured by their benchmarks (for whatever those are worth).

Which graph are you looking at? It's not even close to o1. I think the bigger point here is efficiency not the performance. If we could get it in Gemini flash level pricing or twice of that it would be revolutionary otherwise it would be meh at best.

EDIT: Its 30 times more expensive than 4o lol

Insane pricing - $75.00 / 1M input tokens & $150.00 / 1M output tokens. They mention it's a big model but it's hard to imagine inferencing costs being 20X higher than 4o.

I'm assuming they're doing everything possible to get everyone onto the reasoning models? This seems like it's going to be a short lived model.

Pretraining is dead?