Crossplag — Cross-Lingual Plagiarism and AI-Text Detection, from a Kosovo Startup to European Assessment Infrastructure

Crossplag was founded in 2016 in Prishtina, Kosovo, by Besart Kunushevci to address a gap in plagiarism-detection software: cross-language plagiarism, where a source text is translated into another language specifically to evade Western, largely English-only, detection engines. The platform grew to support roughly 100 languages and describes an index of around 100 billion texts, and by the early 2020s reported over 5,000 educators and institutions using it worldwide, including individual users at Harvard, Yale and Georgetown.

The tool has been included in independent academic evaluations of plagiarism and AI-text detectors. The European Network for Academic Integrity (ENAI) tested Crossplag alongside other tools in 2018 and a 2020 follow-up, finding it performed well on single-source ("copy-paste") detection but weaker on paraphrase and multi-source detection. It was also one of 14 tools independently benchmarked by Weber-Wulff et al. (2023, International Journal for Educational Integrity), a study that found AI-text detectors as a category to be "neither accurate nor reliable" for high-stakes decisions — a caution that applies to Crossplag's AI-content-detection feature as much as to its peers.

In July 2023, Crossplag was acquired by the Norwegian digital-assessment company Inspera (terms undisclosed) and folded into Inspera's assessment and remote-proctoring suite, which operates across roughly 160 countries. This is therefore now a Kosovo-founded product operating as part of a larger Norwegian company, rather than an independent Kosovar business — a nuance worth preserving for evidence purposes. Marketing claims about specific accuracy percentages and a named 2025 pilot circulating on third-party AI-tool comparison blogs could not be independently verified against any primary source and are excluded here.

Read the full analysis: https://prishtinainsight.com/how-did-crossplag-go-global-the-success-story-of-a-kosovar-start-up-mag/