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According to the developers, the service uses a newer, improved architecture of neural networks, which results in a more natural sound of translations compared to competing services. The service uses a proprietary algorithm with convolutional neural networks (CNNs) that have been trained with the Linguee database. It offers a paid subscription for additional features and access to its translation application programming interface.
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Its algorithm uses convolutional neural networks and an English pivot.
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It initially offered translations between seven European languages and was gradually expanded to support 31 languages.
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The translating system was first developed within Linguee and launched as entity DeepL. DeepL Translator is a neural machine translation service launched in August 2017 and owned by Cologne based DeepL SE.
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