Which AI translation breakthrough in 2016-2017 reduced translation errors by approximately 60% and fundamentally changed how language technology products are developed?

Neural Machine Translation (NMT) has dramatically transformed the language services industry in recent years. As AI continues to evolve, language professionals must understand how these technologies impact product development, customer expectations, and market strategies. This trivia question explores a significant milestone in AI translation technology that changed how language products are developed and marketed.

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Google's implementation of Transformer architecture and BERT
Google's switch from phrase-based to Neural Machine Translation (GNMT)
Microsoft's development of Z-code multilingual translation model
DeepL's proprietary neural network architecture for European languages