Translate your content

Language Translator translates text from one language to another. The service offers multiple domain-specific models: Conversational (English, Arabic, French, Portuguese and Spanish), News (English, Arabic, French, German, Italian, Japanese, Portuguese, Korean and Spanish) and Patent (English, Chinese, Spanish, Korean and Portuguese).

Customize your translations

Customize the translations based on your unique terminology and language. Language Translator supports three types of customization: forced glossary, parallel phrases and corpus-level customization.

It’s your data

Unlike other translation services, IBM protects your privacy, you own your data.

Language Translator Service Overview

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Start Building with Language Translator

Get started on Bluemix

You can access Watson services free for 30-days on Bluemix, IBM's cloud development platform.

Developer tools

Everything you need to start building with Watson.

Learn more about Language Translator



  • – 1,000,000 characters per month at no cost and includes the default translation models.
  • – When you upgrade to a paid plan, you can create custom models.
  • – Lite plan services are deleted after 30 days of inactivity.


  • – 250,000 characters FREE for standard translations*
  • – $0.02/thousand characters after the first 250,000
  • – Includes News, Conversational, and Patent models


  • – $0.02/thousand characters for standard translations
  • – Custom Model Translations
    –$0.10/thousand characters
  • – Custom Model Maintenance
    –$15.00/model/month, pro-rated daily


Watson Premium plans offer a higher level of security and isolation to help customers with sensitive data requirements.

Available models and languages


English <--> Arabic, French, Portuguese, and Spanish


English <--> Arabic, French, German, Italian, Japanese, Portuguese, Korean and Spanish; Spanish <--> French


Chinese, Spanish, Korean and Portuguese ---> English

Contact IBM

Contact IBM