If I upload the same image multiple times to the same or different projects, are they counted against my image quota twice?
If you are uploading the same image to the same project: Only the original will be kept. Roboflow uses similarity matching to filter out duplicate or nearly identical images from your dataset (when uploading to the same project), so you don’t end up with issues such as training leakage from the same image(s) existing in multiple sets (train/valid/test sets).
If you are uploading the same image to a different project: If an image’s content is the exact same, it is only counted towards your usage once. For example, if you merge two datasets, the merged dataset and the two original datasets exist in your account, but there is no charge for the merge because the images are duplicates.