I'm building Plandex (https://github.com/plandex-ai/plandex), a terminal-based AI coding tool which currently uses the OpenAI api--I'm working on support for Anthropic and OSS models right now and hoping I can ship it later today.
You can self-host it so that data is only going to the model provider (i.e. OpenAI) and nowhere else, and it gives you fine-grained control of context, so you can pick and choose exactly which files you want to load in. It's not going to pull in anything in the background that you don't want uploaded.
There's a contributor working on integration with local models and making some progress, so that will likely be an option in the future as well, but for now it should at least be a pretty big improvement for you compared to the copy-paste heavy ChatGPT workflow.
You can self-host it so that data is only going to the model provider (i.e. OpenAI) and nowhere else, and it gives you fine-grained control of context, so you can pick and choose exactly which files you want to load in. It's not going to pull in anything in the background that you don't want uploaded.
There's a contributor working on integration with local models and making some progress, so that will likely be an option in the future as well, but for now it should at least be a pretty big improvement for you compared to the copy-paste heavy ChatGPT workflow.