How difficult is it to get seed funding

Hi, Me and a small team are building an enterprise grade genAI project and we are hoping to have a minimum viable product. We have some data scientists and a load of private data as we have connections to a large enterprise firm who is willing to help us. We have letters of intent from people in the enterprise too. We need a lot of scale and as such need some seed funding. I have some people with a network but we want to look into an angel investor. Is this plus a usable demo product usually enough to be able to attract investors? Any tips would be super helpful as this is my first venture into the entrepreneurial side of tech