> Of course, ai will continue to improve. But it is also likely to get more expensive…Microsoft’s share price took a beating last week as investors winced at its enormous spending on the data centres underpinning the technology. Eventually these companies will need to demonstrate a return on all that investment, which is bound to mean higher prices.

That’s not how it works, and I’m surprised this fallacy made it into the Economist.

Commodity producers don’t get to choose the price they charge by wishful thinking and aspirational margins on their sunk costs. Variable cost determines price. If all the cloud companies spend trillions on GPUs, GPU rental price (and model inference cost) will continue going down.

Indeed, cheaper and cheaper AI for the same level of performance has been even more consistent empirically than improvement in frontier model performance.