Right. But FYI, you don't need microsoft's service, you can roll your own with open source models that will return a confidence score between 0 and 1. And a lot of those models are totally open source -- https://huggingface.co/docs/transformers/en/tasks/image_classification They are just classification models which return a value between 0 and 1. And they're pretty fast & efficient since Google and other have been fighting this issue for 20+ years and have developed very good and efficient models. (Which work 99.5% of the time. I think it's impossible to get to 100%).