I was curious about one aspect of using the Google Translation API, which I did not find discussed in the documentation. In particular, I am wondering how many times the API gets accessed when performing a translation using OmegaT, and especially, if one returns to segments that have already been translated (for example, should one be perusing through a project and check back on an already translated segment), will the API be accessed again in that case (with whatever charges applied)? Or does OmegaT recognize that a particular segment is already translated, and hence not make a call to the API again (but simply show whatever the previous result was in the Machine Translation pane).
I tend to scroll through previously translated segments multiple times when translating, which I'm sure is quite common. I just want to make sure that I'm not being charged again each time I refer back to an already translated segment for which the Google API was accessed once before.
Machine translation requests are cached. That means that a source segment already machine translated will not be requested again during
the same session (i.e., until OmegaT is closed).
For segments already translated (manually), it's up to you to send them or not to the machine translation engine, with the "Untranslated segments only" checkbox.