Which company's Neural Machine Translation system caused a sensation in 2016 by dramatically improving translation quality with its contextual understanding approach?

In the rapidly evolving field of linguistics and language technology, neural machine translation has transformed how we bridge language barriers. One company's groundbreaking approach to AI translation significantly outperformed all competitors in the prestigious 2016 Workshop on Machine Translation (WMT) competition, marking a pivotal moment in the industry. Can you identify which tech giant's revolutionary neural translation system shocked the linguistics world with its unprecedented accuracy?

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Google with its Google Neural Machine Translation (GNMT) system
Microsoft with its Z-code multilingual translation model
Amazon with its Alexa Translation Services
DeepL with its Linguee-based neural network