I think only for those editors. Google does also give a free API Key (aistudio.google.com) for the underlying models (though not the coding fine-tuned one) But

I think only for those editors. Google does also give a free API Key (aistudio.google.com) for the underlying models (though not the coding fine-tuned one) But IMO the free tier is rate limited a bit too much to build your own extension out of it for free.