> Again, I don't speak French so I cannot say for sure

This reminds me of the adage, that ChatGPT is really great at everything except my own work.

Yeah, that's why I put the caveat in there. I have no real way to verify the result outside of checking against "known good" translations, though if the known-good translation exists then there's not exactly a lot of reason to do the AI translation in the first place.

I suspect if I knew another language I would be able to find errors in the translation.

Yes, it is another variation on the Gell-Mann Amnesia Effect. I have a number of non-developers in my circle of friends who think Claude is about to put me out of work. They think it is just a great tool for them, not a replacement. Of course!