AI translation for documents, chat and video: dedicated text translators, video translation with new voice tracks, cloud AI suites and developer APIs, and self-hosted models for confidential text.
Translation here splits into three kinds. Dedicated engines such as DeepL Translator are built for accuracy and natural flow, with support for whole documents. Video tools such as Rask AI translate a clip and add text-to-speech, so it can be republished in another language with a new voice track. Cloud AI suites from large providers offer translation as one service among many.
General chat models such as ChatGPT also translate, and let you specify audience, register and glossary in plain words, which helps with marketing copy and anything idiomatic. The trade-off is consistency: the same term may come out differently across a long document unless you supply a glossary. A dedicated engine tends to be steadier on long, formal text.
Developers who want translation behind an API can look at the cloud suites such as Google Cloud AI, and a self-hosted model like Meta Llama 3.1 keeps confidential text on your own servers. To transcribe audio first, see Voice to text; to voice the result, Text to speech.