Bitcoin: 145B = 145,000M kWh/year
ChatGPT: 0.5M * 365 = 182M kWh/year
Based on the numbers from the article, ChatGPT is using 3 orders of magnitude less electricity for something that provides high utility for vastly more people.
There are of course many other uses of AI aside from ChatGPT and more cryptocurrencies aside from BTC, but these are very different power consumptions.