I'm a programmer hobbyist and I'm attending a video course at my own expense to learn how to program using WPF. In the course we arrived at a point where we will carry out a project with Microsoft's Custom Vision AI. But a subscription to Azure is required and I don't know if it's free after the first 30 days for this type of service. In practice we will have to upload good and discarded photos of an object then train the model (from the Azure account) and then from one of our WPF applications we could interact with that model. I want to know if these platforms (Microsoft, AMAZON, Google and IBM and others?) offer the service that I need for free ...for hobbyist and students.
I found some open source projects has anyone ever used them?