Image support & env edit

[rohitsriram98]

Support for image as input required so that I can utilise the full functionality

Support for env variables like openaimodel and authenticated users through telegram prompts required, server restart can be done manually if not possible

Either the default value for model should be changed from telegram or for that specific prompt we can give as an optional parameter

[DanilQ1]

https://github.com/FlorianMgs/gpt4-image-api

[n3d1117]

Hi @rohitsriram98, this is ongoing at #457! Closing as it is not an issue