Do AI translators work well enough for scientific papers?

As of 11 Feb, the popular arXiv preprint server asks that all papers be in English, or be accompanied by a full English translation. They say automated translations are fine, so long as they are faithful to the work.

So: are AI translators up for this task?

Find out in my story in Nature: https://www.nature.com/articles/d41586-026-00229-0