The release of ChatGPT in late 2022 is commonly cited as a tipping point for the current AI boom , but if you were paying close attention at the time, it was an underlying model release — the upgrade to GPT-4 in early 2023 — that really captured the industry’s imagination, turning a fascinating demo product into something that people could actually use in the space of a few months. The implied rate of progress was dizzying, and rumors of an imminent GPT-5 started spreading almost immediately.

GPT-5 wouldn’t come out for more than two years, and now it has . Lots happened in the meantime, of course. OpenAI has a bunch of competitors, now, who are collectively propping up the entire American economy with AI investment. Sam Altman was forced out of his own company — over dispute

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