This is a package that lets you use OpenAI Codex in Sublime Text. To use it, you need to have access to OpenAI's Codex API.
Open Sublime Text and go to Preferences > Browse Packages... to get to the Sublime packages folder, and git clone this repo into the folder. Rename it from sublime-codex to Codex.
First go to Preferences > Package Settings > Codex > Codex Settings and add your API key.
Then, place your cursor where you'd like to generate code or highlight one or more regions you'd like to include in the prompt and press CTRL+\.
If you've highlighted multiple regions, the generation will be after either the last highlighted block or a cursor (if you've placed one somewhere not next to a highlighted region).