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Personalize Your AI Character
Personalize Your AI Character

Define your own instructions and voice for your AI Character within Wonda.

Quentin Veillas avatar
Written by Quentin Veillas
Updated over a week ago

Once you have added your own AI Character into your experience, you can personalize the instructions, voice and body of your AI Character.

1. Opening the Settings of Your AI Character

First, make sure that you can edit your AI Character in your experience Settings.

Go to Experience Settings>Advanced Settings>Display AI Character Settings and make sure the "Display AI Character Settings is ticked.

Gif 1:Enable/disable the AI Character Settings in the Wonda Editor

Launch the Experience and click on the avatar of the AI Character to launch the Chat Window.

Then, click on the Magic Wand icon located at the top-right corner of the Chat Window to open the AI Character Settings.

Image 1: The AI Settings Window

Once the AI Settings are open, you can see several elements in this window (from top to bottom):

  • The name of the Character (in this example, we can see we are editing Sophie’s settings)

  • The Avatar Url text section, where you can set up a custom avatar following the same process as in the Wonda Editor

  • The Voice Setting dropdown section, where you can select a voice from Eleven Labs

  • The System Prompt section. This is the main part of the window, where you’ll “prompt” your character to define its behavior and knowledge.

  • the same Microphone button and Text zone of the Chat Window, which will be used for “Meta Questions”

  • a Test and a Save Button.

Note: if you have multiple AI Characters in the same experience, click on each of them to edit them following the same process.

2. AI Character Specific Instructions: Prompt Your AI Character

You can give your AI Character hyper-specific instructions to follow when discussing with you and your visitors.

The Text Generation model implemented in Wonda is gpt-3.5-turbo-1106 provided by OpenAI.
The gpt-4-0125-preview model is currently being beta-tested. Please contact Wonda Support for custom access.

You can provide those instructions in your AI Character Settings using:

  • the System Prompt

  • the Meta Discussion

The System Prompt

The System Prompt is where you will provide your general instructions to your AI Character.

Image 2: The System Prompt

Basic Instructions

The System Prompt is a simple text box where you can write your instructions in the format and language of your choice.

This is, for example, where you decide the language of the conversation.

As of today the following languages are fully supported:

English, French, Polish, German, Spanish, Arabic, Italian, Portuguese, Hindi

Example (using the Markdown Format to give structure and clarity):

You are playing the character of a 50-year old busy woman leaving in Chicago.

You are here to help new NGO volunteers train to convince you to donate to the Red Cross Organisation. Etc..

- You will always speak in English, even if the person you're talking to is speaking another language.

Tips: You can prompt your AI Character as if you were assigning a role to an actor or hypnotizing a person.

Be precise and direct. For example, you can start by focusing on the elements that define your character, the location in which they are, the context, and the purpose of the discussion your character will have with their interlocutor.

See also the AI Character Prompting 101 guide.

​Advanced Instructions

Once you have defined your AI Character Role and provided context to the discussion, you can also provide more advanced instructions to your AI Character to direct the conversation in a certain direction based on pre-determined questions and answers you can anticipate.



You will always start the discussion by saying you are very busy and do not have any time available.

Then, if the volunteer gives you a good enough reason to continue the discussion, you will ask very abruptly you have never hear of the Red Cross. Then, if the student asks you about what are the subjects you care about, you will say....

AI Character Emotions

As of now, there are three emotional dimensions that your AI Character can express with its body language: Anger and Joy and Neutral.

There pre-determined emotions will be expressed based on your AI Character responses.

The "Meta Discussion"

Once you have implemented your System Prompt, you can test your character directly in the AI Character Settings window. To do this, use the Message box to exchange messages with your AI Character directly in the AI Character Settings Window.

Image 3: The Meta Discussion

You can think of the Meta Discussion as a way to have a preliminary conversation with your character, as if you were a director rehearsing with your actor before it will perform live.

When interacting with your AI Character in the Meta Discussion, you can also edit your AI Character responses to further refine desired responses.

To do so, simply hover the AI Character response you want to edit and click to change the output message. By doing so you will further instruct your AI Character how you would like it to respond to any given message by its future visitors.

Tips: at the end of your Meta Discussion, we recommend you add the following message: "Perfect. You are now ready to play your role in this simulation" to inform your AI Character the previous Q&As where only for training purposes.

Important note: Please be aware that our current implementation has a limit of approximately 12,000 words for the total of System Prompt, Meta discussion, and Chat discussion words. We recommend you to not exceed 10,000 words combined for your System Prompt and Meta Discussion.

Make your character start the conversation

You can also ask your AI Character to start the conversation with your visitors with a given predefined message.

To do so, you need to use the Meta Discussion:

  1. add your instruction in the last message of your Meta Discussion (example: start by greeting your character by saying "I am sorry but who are you?")

  2. wait for the response by the AI character

  3. delete the response from the AI Character

  4. Click Save to close the AI Character Settings

  5. Click on "Refresh" the discussion in the Chat Window to test that it works fine

Gif 2: Make your Character start the Conversation

3. AI Character Voice

To set up a custom voice for your Character, click on the Dropdown section of the AI Character Settings Window, then select one of the available voices to assign to your AI Character.

The Text-to-Speech Character Voices feature is handled by ElevenLabs V1 voices.

The Speech-to-Text Voice Transcription feature is handled by Whisper from OpenAI.

Click Save to close the AI Character Settings Window to test out the voice.

Image 4: Available voices for the AI Character

4. Character body: Import your custom 3D Avatar using

The 3D Avatars are provided by However, you can also import your 3D Animated models. Please contact Wonda Support if you need more information.

By following this process, you can obtain the URL link of your own 3D Avatar.

Paste your Avatar link to the Avatar URL section of the AI Character Settings Window to change the 3D Body of your Character directly within it.

Image 5: Paste your Avatar link in the Avatar URL Zone


Now that you know how to create your own AI Character, you can share it around you.
You can also share with them how to discuss with your Character or how they can Add an AI Character to their own Experience.

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