Google Translate is a multilingual neural machine translation service developed by Google to translate text, documents, and websites from one language into another. Here are some key points about Google Translate:

1. History and Development:

   • Launch: Google Translate was launched in April 2006 as a statistical machine translation service, initially using United Nations and European Parliament documents to gather linguistic data2.
   • Evolution: In 2010, Google introduced an Android app, and in 2011, an iOS version was released. In 2014, Google acquired Word Lens to improve visual and voice translation capabilities2.
   • Neural Machine Translation: In November 2016, Google transitioned to a neural machine translation engine (GNMT), which translates whole sentences at a time, improving accuracy by using broader context2.

2. Functions:

   • Text, Speech, and Image Translation: Google Translate can translate multiple forms of text and media, including text, speech, and text within still or moving images2.
   • Speech Synthesis: For some languages, it can synthesize speech from text, and highlight specific corresponding words and phrases between the source and target text2.
   • Language Detection: It can automatically identify text in an unknown language when "Detect language" is selected2.
   • User Interaction: Users can suggest alternate translations or correct mistakes, which may be included in future updates2.

3. Supported Languages:

   • Number of Languages: As of December 2024, Google Translate supports 249 languages and language varieties at various levels2.
   • New Language Additions: In June 2024, Google added 110 new languages using AI, breaking down communication barriers for millions around the world4.

4. Accessibility Features:

   • Offline Translation: The app supports offline translation for many languages, allowing users to translate without an internet connection5.
   • Instant Camera Translation: Users can translate text in images instantly by pointing their camera5.
   • Handwriting Recognition: Users can enter text via an on-screen keyboard or handwriting recognition2.

5. Integration and Extensions:

   • Chrome Extension: The Google Translate Chrome extension allows users to highlight or right-click on text to translate it, with support for 53 languages3.
   • Mobile Apps: The app is available on both Android and iOS platforms, offering various features such as text, speech, and conversation translation5.

Google Translate continues to evolve with advancements in AI and machine learning, aiming to break down language barriers and facilitate global communication.