Which AI language product was the first to employ a transformer architecture that revolutionized machine translation and significantly improved BLEU scores in 2017?

Natural Language Processing (NLP) has revolutionized the retail sector, enabling unprecedented linguistic analysis and communication capabilities. From customer service chatbots to sentiment analysis tools, language AI products have transformed how businesses interact with consumers and understand market trends. Test your knowledge of breakthrough NLP products that have shaped the modern linguistic technology landscape.

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Google's BERT (Bidirectional Encoder Representations from Transformers)
Google's Transformer model (introduced in the paper 'Attention Is All You Need')
OpenAI's GPT (Generative Pre-trained Transformer)
Facebook's RoBERTa (Robustly Optimized BERT Pretraining Approach)