Copilot also lets you be in charge of the suggestions. You can cycle through suggestions, choose which ones to keep and reject or even manually edit suggested code.
The tool is not based on GPT-3 but is powered by OpenAI Codex, an entirely new system created by OpenAI. As per the blog post announcing the new tool, " OpenAI Codex has broad knowledge of how people use code and is significantly more capable than GPT-3 in code generation, in part, because it was trained on a data set that includes a much larger concentration of public source code."
Copilot is available as a technical preview and the company says that the number of spots for people who want to try out the technology are limited for now.