Own Data/Embeddedings in Flutter

Hey Guys,

I am a beginner in programming and wanted to build a Chat gpt Flutter mobile app. For that I need a customized data.

Maybe you can help me briefly: do I have to program customizations with Python for the customization with own data (e.g. Word file) in Open AI or can this also be done directly in Flutter? I guess I need Embeddedings for my own data. I didn’t find anything that you can do this with Flutter so I guess you have to do it with Python. Is that correct? If so, how to transfer the customized API in Python to flutter?

Does anyone have an idea or is flutter not well enough known?