they're complementary! codeium works like copilot, constantly autocompleting what you want to type next, which helps a lot when you already have a decent idea of what you need to get done and need to get it done faster. chatgpt (and chat interfaces in general) help you get some ideas on what to do when you are doing more open-ended exploration, and is explicitly invoked. as developers, we all code in these different "modes" and different tools can be built for each!
