Question: I need a face recognition technology that can be easily integrated into my project, do you know of any reliable options?

If you're looking for a serious face recognition system, Facia is a high-end option that offers a range of services including face recognition, liveness detection, face matching and age verification. It can be used for a variety of use cases, including account deduplication and access control, in retail and health care and other industries. Facia promises strong data privacy and security, GDPR compliance and advanced AI-powered facial recognition technology with 24/7 support.

For a cloud-based service, Luxand offers a facial recognition API that can detect age and gender, detect emotions and perform liveness detection. It can handle large volumes of photos and can be called from programming languages like Python and JavaScript. Luxand offers tiered pricing, including a free trial, and protects data by storing only neural network templates.

Another serious contender is OpenCV, a computer vision library optimized for real-time performance and that includes more than 2,500 algorithms for AI tasks. It's got serious face recognition technology and is available on many platforms through C++, Python and Java interfaces. OpenCV also offers a lot of documentation and tutorials on AI and computer vision, so it's a good option for developers and pros.

Last, Imagga offers a full-featured image recognition API that includes facial recognition along with other features like image tagging and content moderation. It can be integrated with a variety of services and offers customizable machine learning technology for different industry needs. Imagga offers tiered pricing that should appeal to startups, small businesses and enterprises.