Your core assumption is that it's possible for an AI-driven centrally planned economy to be "far more efficient" than a market economy. There are two problems here: getting your AI the information they need to make the right decisions, and the political risks of implementing a perfectly efficient centrally planned economy, which will by necessity cause all kinds of suffering and death as a result of its allocation decisions (which, by the way, will probably be guided by value judgments made by humans, but I digress). Both of these are huge challenges, and it's not clear to me that either of them will be easier to accomplish with a AI-driven planned economy vs. a pure market economy (which also has its problems, I know!). They're ultimately just two different kinds of algorithms, and it's unclear to me that the top-down centrally planned approach is necessarily better, even given general AI and tons of input information.