This sort of thing drives people to more open competitors. I use both every day and Opus isn't that much better than the Chinese SOTA. If corporate policy allowed me to use GLM or DeepSeek I absolutely would. Claude is already pricey for what it offers.
Really depends what you're working on. GLM 5.2 is doing excellent webdev work for me but really faffed up when working on a custom garbage collector that Opus has no problems with.