CloudSight - Image recognition API; send an HTTP request with an image, get a description of contents.
Spext - Convert your speech, podcasts and videos to text.
Google Vision AI - Cloud Vision API provides a comprehensive set of capabilities including object detection, ocr, explicit content, face, logo, and landmark detection.
Scale - Get human tasks done with just one line of code.
Amazon Rekognition - Add Amazon's advanced image analysis to your applications.
Descript - Text-based audio editor and automated transcription