Which major language technology company was first to implement a full Neural Machine Translation system for public use, fundamentally changing their product design approach?

Neural Machine Translation (NMT) has transformed the language industry, enabling more accurate and contextually aware translations than ever before. This technology has revolutionized product offerings from language service providers and tech companies, creating new market opportunities and changing how language products are designed and marketed. Test your knowledge about this significant technological advancement in the language industry!

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Google (with Google Neural Machine Translation in 2016)
DeepL (with their Neural Net Translation system in 2014)
Microsoft (with Microsoft Translator Neural Network in 2015)
Facebook (with FAIR NMT system in 2015)