Do I have to use "I" or "we" when orally presenting my scientific thesis written by a single author? [closed]

Note that

We will be presenting my machine learning model,

is completely wrong. When you are writing a thesis, you would use we instead of I and our instead of my. The we combined with the my doesn't work. Similarly, this combination doesn't work when giving an single-presenter oral presentation. It implies that several people are speaking, but somehow that only one person came up with the machine learning model.

In an oral presentation, you should use I when you want to refer to yourself as the person giving the presentation. For your work, you can either use I/me/my or we/us/our. If it was joint work with somebody else, definitely use we/us/our. If it's your own single-authored work, I think using I/me/my is more common, but I don't think anything is wrong with using the scientific we/us/our.

So in an oral presentation, you should say one of:

I will be presenting my machine learning model,
I will be presenting our machine learning model.