- CorenSearchBot checks every new page edit for plagiarism, while CopyPatrol/Plagiabot checks every single new edit for plagiarism. In other words, CorenSearchBot's checks are a subset of CopyPatrol/Plagiabot's checks.
- CorenSearchBot (usually) uses Yahoo/Bing/Google API for checking for plagiarism while CopyPatrol uses Turnitin only.
We should investigate switching Plagiabot to use Yahoo/Bing/Google API and tagging the pages like CorenSearchBot does from Plagiabot itself, hence integrating the two bot functionalities into one. But before that it will be useful to see if there's any need for this in the community and if it'll make maintaining the two bots easier in any way.