After burning through its IT budget in the first quarter of the year, Uber has now stabilized its AI bills even as usage surges, the company tells Axios.Why it matters: It's the latest example of enterprises finding creative ways to increase AI use without their bills ballooning. State of play: Weekly agent requests at Uber have grown 9.4 times since February, but Uber's total AI spending has stayed stable since April, Uday Kiran Medisetty, distinguished engineer at Uber, wrote in a blog post.Us...