Google Cloud Vision API vs PicPurify

Google Cloud Vision API provides image-analysis features that developers can integrate into applications through REST or RPC. Its capabilities include image labeling, face and landmark detection, text recognition, object localization, web detection, and explicit-content tagging. Text Detection reads text in images, while Document Text Detection supports dense text, handwriting, and PDF or TIFF files. Object Localization returns labels and bounding boxes for multiple recognized objects. Web Detection can return related web entities, matching image URLs and pages, visually similar images, and a best-guess label. Face Detection locates faces and facial landmarks and supplies likelihood ratings, but it does not recognize specific individuals. Documented workflows connect it with Cloud Storage, Cloud Functions, Pub/Sub, and Cloud Translation API. For Android and iOS development using Google Cloud Vision services, Google recommends ML Kit for Firebase. Limits include 20 MB per image, 10 MB per JSON request, 16 images per synchronous annotate request, and 2,000 images per asynchronous batch request. The first 1,000 units per feature each month are free; subsequent charges vary by feature and usage tier. The listed plan price is free, with Label Detection listed at 1.50 USD per 1,000 units for 1,001–5,000,000 units.

PicPurify is a real-time image moderation API for detecting and filtering inappropriate user-generated images. Its listed checks include porn, suggestive nudity, gore, money, weapons, drugs, hate symbols, obscene gestures, and QR codes. The API can also detect faces and return age-majority and gender classifications. It accepts JPG/JPEG, WEBP, PNG, BMP, TIFF, RAW, PDF, ICO, and GIF files, up to 4096×4096 pixels or 16 MB. The image API limit is five requests per second, which the maker says can be increased on request for legitimate reasons. Each task on an image uses one unit, so running multiple checks on the same image uses multiple units. Video moderation analyzes frames individually; its default interval is one frame per second, and charges depend on video size and frame interval. PicPurify says it can create a tailor-made model for specific detection needs. Integration examples are available for cURL, Python, Node.js, and PHP. The free plan includes 2,000 units with no time limit. Paid plans start at $19 per month.