Crusoe, a Denver-based AI data center startup that recently raised $3.9 billion, has ended plans to use a new line of stationary power plants developed by fellow Denver company Boom Supersonic. Founded in 2018 as a bitcoin miner that ran on excess natural gas from oil fields, Crusoe has since become one of the biggest builders of AI data centers, including a massive campus in Abilene, Texas, that supplies computing power to OpenAI. Boom Supersonic, which is developing a supersonic passenger jet called Overture, launched a new business last year to sell a version of the engine it’s developing…