For big stuff like portfolio allocations? Hell no. It's a solved problem with a few good solutions already. Broad market cap weighted indexing, target date funds. Any custom themed portfolio the ai comes up with is bonkers. It may chase recent past performance and load you up with a DRAM themed portfolio. Which may be great for a few years but then you get left behind when you fail to rotate out of dram at the right time. Cap weights have rotation baked in.
For small stuff? Maybe. If it can give some insight into total cost of owner ship. on things like cars. Used vs new. The ai could compare price charts, depreciation, etc to rank some good value buys. But that can be calculated with traditional non-ai logic, just needs data.