Adding ChatGPT and DeepL in the Translation Memory

We are testing ChatGPT and DeepL, utilizing their AI translation services, as helpers to improve the translator’s work. We have deployedDeploy Launching code from a local development environment to the production web server, so that it's available to visitors. an update to enable them at This experimental feature requires an APIAPI An API or Application Programming Interface is a software intermediary that allows programs to interact with each other and share data in limited, clearly defined ways. key for it to be enabled and will not be visible until the keys are added (full instructions below).

We’re interested in hearing your feedback about how you’ve found this feature. We’d like users to test this functionality and if it seems like it will be useful, we’ll look into enabling it for all users and use a site-wide API key associated with The community site where WordPress code is created and shared by the users. This is where you can download the source code for WordPress core, plugins and themes as well as the central location for community conversations and organization. in the future.

When enabled, you will see the proposed translations as new rows at the bottom of the “Translation Memory”. Please keep in mind that these are just additional suggestions, and that you have to review and improve them manually before using them. But, first, you should activate one or both of the translation services. The next section explains how to enable them.

Enabling OpenAI/ChatGPT

API key

To be able to use it, you need to have an OpenAI account, and you need to create a free API key. Once you have the key, you have to add it in your translation settings.

Custom prompt

You can (and I recommend to) add a custom prompt. ChatGPT will receive these instructions in the translation query, before the glossary content for this translation and language. You can see the custom prompt I have been using to make some translation tests to Galician and to Spanish. More about the prompts below.


The temperature is a value between 0 and 2. Higher values like 0.8 will make the output more random, while lower values like 0.2 will make it more focused and deterministic.

Other interesting information

The system is using:

  • The gpt-3.5-turbo model.
  • A maximum number of 1000 tokens.
  • n (how many completions to generate for each prompt) to 1.
  • A 20 s. timeout to query the OpenAI API.

Enabling DeepL

To be able to use it, you need to have a DeepL account, and you need to create a free API key. Once you have the key, you have to add it in your translation settings.

We always translate from EN-US – English (American). DeepL only supports these target languages:

  • BG – Bulgarian
  • CS – Czech
  • DA – Danish
  • DE – German
  • EL – Greek
  • EN-GB – English (British)
  • ES – Spanish
  • ET – Estonian
  • FI – Finnish
  • FR – French
  • HU – Hungarian
  • ID – Indonesian
  • IT – Italian
  • JA – Japanese
  • KO – Korean
  • LT – Lithuanian
  • LV – Latvian
  • NB – Norwegian (Bokmål)
  • NL – Dutch
  • PL – Polish
  • PT-BR – Portuguese (Brazilian)
  • PT-PT – Portuguese (Portugal Portuguese)
  • RO – Romanian
  • RU – Russian
  • SK – Slovak
  • SL – Slovenian
  • SV – Swedish
  • TR – Turkish
  • UK – Ukrainian
  • ZH – Chinese (simplified)

If your language is not supported by DeepL, you will not see this row.

We are using the free layer of DeepL, with a maximum of 500,000 chars translated each month. If you need to use the premium API, please, pingPing The act of sending a very small amount of data to an end point. Ping is used in computer science to illicit a response from a target server to test it’s connection. Ping is also a term used by Slack users to @ someone or send them a direct message (DM). Users might say something along the lines of “Ping me when the meeting starts.” us in the comments.

Disabling them

To disable one of these helpers, or both, you only have to remove the API keys.

Disabling feedback in current, reject and old stringsString A string is a translatable part of the software. A translation consists of a multitude of localized strings.

It doesn’t make sense to use these external services when the translation is in one of these statuses: current, reject or old. If you want to disable the feedback in these situations, decreasing the external API usage (and cost), will have to enable the checkbox you see in the image below.

OpenAI Prompts

The OpenAI prompt showed before is an initial approach, useful for my mother languages. I think it will be very interesting to share the different prompts you will use with the different languages, so we will improve our prompts. Please, add your custom prompt in the comments.

Please, write your prompts in English, because the prompt is added to a query with the glossary parameters and other small things, so if you write your prompt in another language, the query to ChatGPT will use 2 different languages.

#chatgpt, #deepl, #openai