Google Vision AI - Cloud Vision API provides a comprehensive set of capabilities including object detection, ocr, explicit content, face, logo, and landmark detection.
YOLO - Real-time object detection
Amazon Rekognition - Add Amazon's advanced image analysis to your applications.
Dashmote - Dashmote bundles stock image providers to make finding stock images as easy as possible.
Clarifai - The World's AI
Rubric - Generate an instant, cool caption for your photo