In November 2016, Google announced that Google Translate would switch to a neural machine translation engine – Google Neural Machine Translation (GNMT) – which translates 'whole sentences at a time, rather than just piece by piece. Its accuracy, which has been criticized and ridiculed on several occasions, has been measured to vary greatly across languages.

During a translation, it looks for patterns in millions of documents to help decide which words to choose and how to arrange them in the target language. Rather than translating languages directly, it first translates text to English and then pivots to the target language in most of the language combinations it posits in its grid, with a few exceptions including Catalan-Spanish. Launched in April 2006 as a statistical machine translation service, it used United Nations and European Parliament documents and transcripts to gather linguistic data. As of December 2021, Google Translate supports 109 languages at various levels and as of April 2016, claimed over 500 million total users, with more than 100 billion words translated daily. It offers a website interface, a mobile app for Android and iOS, and an API that helps developers build browser extensions and software applications.

Google Translate is a multilingual neural machine translation service developed by Google to translate text, documents and websites from one language into another. November 15, 2016 5 years ago ( ) (as neural machine translation) April 28, 2006 15 years ago ( ) (as statistical machine translation)

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