When using github copilot, am I using gpt3 or 4? At first it seemed that the Copilot X is a new version backed by gpt4, but turns out X is a placeholder for new features, not a next version of copilot, right?

a modified version of GPT-3

so when they mention 4, its only for a given feature?

its probably just going to be based on GPT-4 for all the products then

well the X is meant to stand for features, i.e. Copilot Chat, Copilot Pull Requests etc.. and they dont explictly mention to base autocompletion getting better