Kagi's translation is absolutely top notch. I used it for a few things and while Google's, even Gemini, got some context, kagi's caught the spirit of the text perfectly.

It's that good because the language model they use is expensive I'm pretty sure. I haven't seen many details on what they use, but it's apparently a loss leader for them and already can no longer be used for free.

Meanwhile google translate is probably served on the cheapest model they could muster.