Nothing about how much Meta paid for Manus. Is this an actual accuquisition?
Anthropic and Bun shared a major investor. Looking at this it's not clear of Meta actually invested in Manus. But they clearly aren't showing much signs of turning into a unicorn meaning that its investors would have been looking for some kind of exit. An acquisition by Meta counts as a win. Meta has a lot of fingers in a lot of pies in terms of investors. Big companies like that helping out friendly investors is quite common. They all need each other in different contexts.
The reason I'm expecting more of this is that investors have been sinking a lot of money into all sorts of AI startups in the past few years. Most of those are most likely not stay independent or get to an IPO. Short of letting them fail, acquisitions with undisclosed amounts are a nice way out for investors and founders to liquidate their investments and save some face in the process.
Meta gets some fresh talent and tech; investors get some return on investment and can claim some kind of exit happened. I doubt a lot of cash changed hands here. Share swaps are a common tool here.
It will be interesting to see what Meta does with Manus. I don't expect they'll do a lot with it. Just speculating but I just don't see a great fit here for Meta. Unless it is to breathe some life into their Llama strategy.