FAQ: Who is behind Mozilla Data Collective?
We are backed and stewarded by Mozilla Foundation - the non-profit, movement-building, and philanthropy arm of Mozilla.
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15 Datasets for Fine-Tuning Whisper on a New Language in 2026
Why fine-tuning Whisper is a dataset problem OpenAI's Whisper changed what's possible in speech recognition: a single multilingual model with strong zero-shot performance across dozens of languages. But "dozens" is the catch. But for the long tail of the world's languages, even
How Radio Free Europe/Radio Liberty Also Serves Its Communities Through Its Datasets
For more than 75 years, Radio Free Europe/Radio Liberty (RFE/RL) has promoted democratic values by providing accurate, uncensored news and debate in countries where a free press is threatened. RFE/RL reaches more than 44 million people every week across 18 countries, in 24 languages, including Persian, Russian,
What makes a good dataset sample — and how to create one
In this post, we walk you through how to create a useful dataset sample as a preview of your dataset, and guide you in uploading it to the MDC platform.
15 Datasets for Building a Low-Resource Translation Model in 2026
The problem with "low-resource" machine translation Most production machine-translation systems in 2026 are still trained on a fairly narrow set of language pairs: the 50 or so for which the open web supplies enough parallel text to push BLEU scores into useful territory. Below that line, MT quality