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The AI vibe shift is upon us

Analysis by

Allison Morrow

Allison Morrow

Updated 11 hr ago

This may not be the AI winter. But investors are certainly feeling the chill.

This may not be the AI winter. But investors are certainly feeling the chill. Kilito Chan/Moment RF/Getty Images

A version of this story appeared in CNN Business’ Nightcap newsletter. To get it in your inbox, sign up for free here.

Rather suddenly, there’s been a vibe shift around artificial intelligence, the tech that’s hypnotized Wall Street and inspired cultish devotion across Silicon Valley over the past three years.

And while it’s too soon to declare August 2025 the start of the AI winter, or the AI correction, or the AI bubble bursting, or whatever slowdown metaphor you prefer, it is undeniable that a series of industry stumbles is making investors, businesses and customers do a double-take.

Among them:

Meta, which was recently shelling out $100 million signing bonuses for AI talent, has instituted a hiring freeze and is reportedly looking at downsizing its AI division.

Sam Altman, the CEO of OpenAI and the industry’s biggest hype man, is floating the word “bubble” in media interviews.

ChatGPT-5, billed by OpenAI as a PhD-level game-changer, is a flop.

Coreweave, a cloud computing company backed by Nvidia, has shed nearly 40% of its value in just over a week.

Researchers at MIT published a report showing that 95% of the generative AI programs launched by companies failed to do the main thing they were intended for — ginning up more revenue.

Anthropic and OpenAI have struck deals to give their products to the US government for next to nothing — even as they are burning through cash and lack demonstrable paths to profitability.

All of that has sent traders rushing to buy “disaster puts” — options that act as a kind of insurance for when the market drops — in case we’re about to relive the late-90s dot-com bust. Per Bloomberg, investors aren’t just preparing for a pullback, they’re bracing for a nosedive.

I suspect this will lead to a larger correction,” Mike O’Rourke, chief market strategist at JonesTrading, told me, noting that Meta dangling NFL-like compensation packages to attract AI engineers was “a sign the spending was going over the top.