opencv.fr offers Free Trial and Free Plan which are beneficial to users who want to try out the FR technology (i.e 1:N, 1:1).
OpenCV FR is a premium product introduced by OpenCV, the technology and algorithm are powered and developed by Seventh Sense AI, which is a different company from opencv.org. Seventh Sense team has invested 3 years in building, training and researching the best computing-efficient and secure model, therefore, the paid tiers offer more capability (i.e Liveness) and higher API rate limit.
For more information what Seventh Sense AI company is offering, please visit the website at seventhsense.ai or contact us at support@seventhsense.ai