It always amazes me how many of these "we're winding down X" stories hit the front page here and I've never heard of X. We really do work in silos, even if it doesn't seem that way.
When a product shuts down it's usually because it wasn't profitable (or not profitable enough). Either they didn't get enough paying customers or they set their pricing too low. For whatever reason- but there's probably some correlation between a product shutting down and many people not being aware of its existence.
Even without being well known, these stories can hit the front page if a few people upvote a post quickly, and then the post gets a few sympathy votes as it rises up the page.
I don't think profit plays a big role.
Although, as I think about it, maybe as an AI company nobody ever expected them to ever get to profitability so the only way to continue their existence was through continued funding.
You found a company and own 100%. You get investment and bring on partners, you set aside 20% for employee shares, etc. All of a sudden there's a dozen owners and nobody owns 50%. You're profitable in the sense that everyone's payroll clears and you're making rent, with money left over, but it's not enough to invest in anything big, and the investors won't put up anything more because your growth has stalled.
Every investor who was previously your "partner" will be trying to shut the company down and sell it for parts.
VCs don't make their money by having a portfolio of companies throwing off $200k/yr in profit to a dozen different investors.