Polytranslator vs ChatGPT: when a chatbot is enough — and when it invents words

Every Polytranslator user has a free frontier chatbot in another tab, so we ask them directly in user interviews: why use a dedicated translator? Their answers are consistent, and they match what we see in evaluation data. This guide is the honest version of both.

Where ChatGPT is genuinely fine

Major modern languages, short texts, and gist-level understanding. ChatGPT is a strong translator for Spanish, French, German, Chinese — high-resource languages where its training data is deep. It can also discuss grammar, which no translator does.

The failure mode: fluent, confident, invented

On low-resource languages — ancient, indigenous, constructed — chatbots produce output that looksright and isn't. Users tell us this in their own words: a Sanskrit scholar reported that a general chatbot “invents what it can't translate” and mixes up Sanskrit's three genders; an Old English reader found that “even after I went to ChatGPT to translate Old English, they got it wrong.” Our evaluations across 5,600 test items show the same pattern: hallucinated vocabulary is the characteristic failure on exactly the languages people can't verify themselves. This isn't guesswork — Polytranslator's team published peer-cited research on low-resource machine translation (arXiv:2404.13813, 125+ citations), and the whole product is built on that work.

What a dedicated translator adds

• The Advanced tier — the most accurate translation engine on the market, built for texts where fidelity matters
• Coverage across 474 languages, with an Advanced tier for the hardest texts
• Whole-document translation (PDF, DOCX, EPUB, photographed pages) with consistent terminology — chat contexts degrade after tens of pages, a limit users hit in practice
• Transliteration, pronunciation audio, and dictionaries in the same place
• No prompt-wrangling: paste, pick languages, done

The fair summary

Chatbot for conversation about language; dedicated translator for translation you need to trust — especially on any language where you couldn't catch an invented word yourself. Try yours free on the translator.