I'm betting 2028, because NVIDIA is just one of many investors. However they are burning cash like crazy and have fallen behind everyone for specific niches.
There also ALWAYS has to be a fall guy. Look at previous recessions. 2008 had a couple fall guys and the government bailed the rest out.
OpenAI made a bet on the mass consumer market wanting to pay for subscriptions to a chat bot. That was/is a bad bet. LLMs have SOME use in the professional sector. For the interpersonal sector, those that pay often have type of mental health issue and are lonely, seek validation, etc.
My current prediction is that by EOY 2028:
OpenAI will collapse in some way, or be close enough to it they will beg for US government help.
Microsoft will take a huge hit (they've already started walking back AI features in Windows and other products to minimize this, however they'll still get hit)
NVIDIA will likely see the writing on the wall, however they will still be harmed severely (If AMD could stop missing opportunities, they could profit here, alas...).
RAM will go on deep discount, and I would not rule out SK Hynix, Samsung, Micron, etc. either going bankrupt or exiting the market, depending on the company from unfulfilled contracts, negative consumer sentiment, and China's rise in the memory arena (more on that soon).
AMD will...suffer a huge loss, however they will be on better footing than NVIDIA since people need general compute and Intel can't provide it.
Intel...well...lol. They have until that time to turn stuff around, otherwise they are cooked.
Apple will be fine.
Amazon will take a huge hit.
Facebook will take a huge hit.
Google will take a a moderate to huge hit, however they will be fine.
Everyone else will try and pivot to profitability.
AI tools/LLMs won't go away. Many workplaces in tech now require them. Useless/crappy tools will go away.
This whole process will likely extend through 2030, however, Open AI's issues I think will hit hard in 2028 unless they find a way to differentiate.