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Fill Mask Datasets

There are 9 fill mask datasets in our directory. Each links to its source, paper, and download — browse the full list below or filter by language.

Fill Mask is the task of predicting masked-out words in a sentence, the pre-training objective behind models like BERT. We catalog 9 datasets for it.

Updated June 2026

What languages do fill mask datasets cover?

EN datasets (6)AF datasets (2)AM datasets (2)AR datasets (2)ALS datasets (1)ZH datasets (1)AS datasets (1)AZ datasets (1)

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