Beemo (Benchmark of expert-edited machine-generated outputs) is a benchmark for fine-grained machine-generated text detection, which consists of 6.5k texts written by humans, generated by ten open-source instruction-finetuned LLMs and edited by expert annotators for various use cases. Furthermore, each machine-generated text is edited by two state-of-the-art LLMs using several diverse editing prompts, which… See the full description on the dataset page: https://huggingface.co/datasets/toloka/beemo.