
The official Telegram bot of PROMT, a veteran Russian machine-translation company: send text or forward a whole channel post to translate it across 16 languages, with automatic language detection.
5 alternatives to Perebot for Translators: PROMT.Translate, Lingvanex Translator, Yandex Translate. Ranked by the HotBots score, checked automatically.

The official Telegram bot of PROMT, a veteran Russian machine-translation company: send text or forward a whole channel post to translate it across 16 languages, with automatic language detection.

The Telegram front-end for Lingvanex's translation engine: send text for an instant translation, ask for a word's definition, or have the result read aloud, across a very wide language list.

Official Yandex Translate bot: send text and get a translation with automatic language detection, or use it inline in any chat. Free, dozens of languages, strong on Russian.

A compact Russian-English dictionary bot built on ABBYY's Lingvo word database — send one or two words and get a proper dictionary-quality translation, not a full-sentence translator.
A free, wide-coverage translator bot (reportedly 180+ languages) with a bare-bones Telegram profile — solid if you need an obscure language pair, but verify results carefully since there's little public information about who runs it.