While personGroups are still limited to 1,000 people, you are now able to add up to 1,000 personGroups to the standard tier, for a total of 1 million person objects.
personGroups are now limited to 10,000 people.
Happy to announce this was released to the service as part of our July 2016 update and we recently updated the C#, Python, iOS, and Android packages on GitHub to support these changes as well.
Finding Similar Face API: Added optional mode field enabling selection of two working modes, default matchPerson works the same as before, and new mode matchFace removes the same person filtering. If mode field is not specified, the behavior is the same as the past release.
Face Identification API: Optional user-specified confidenceThreshold is enabled for user to define the confidence threshold of whether one face belong to a person object.
Please take a look and provide feedback or requests for additional features.