There wasn't that much utility in old, unreliable AI.

I remember their capabilities like so:

GPT-3 could produce convincing looking texts, sometimes.

GPT-4 was somewhat smarter and would give more accurate answers. At that time image understanding was released, wasn't it?

Then with GPT-5 we have a reasoning model, another jump in capabilities.

Now, compare GPT-6 Astra with its ability to implement software, work on long horizon tasks, and visual understanding.