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Create your first agent

Let's walk through creating your first voice AI agent in Studio. This guide will help you set up a basic agent that you can test and refine.

Step 1: Create a new agent​

  1. Log in to Studio
  2. Navigate to the Agents page from the main menu
  3. Click the Create Agent button. This will create a new template agent.
  4. Give your agent a name (for example, "Customer Support Agent")

Your new agent is now created and ready to configure!

Step 2: Choose a voice​

Your agent's voice sets the tone for customer interactions. Stellar offers several voice options to match your brand.

For now you can select any voice, but we encourage you to try out different voices to find the best fit for your use cases. Some voice are better for particular languages and some voice are more formal or informal than others. For typical Dutch use cases we recommend choosing Marin.

Voice selection

Consider your audience when choosing a voice. A friendly, warm voice works well for customer service, while a professional, neutral voice might be better for professional services.

Step 3: Define your agent's personality​

The personality prompt is where you describe how your agent should behave. This is one of the most important settings for your agent.

The template agent comes with a basic Dutch-language personality that you can customize for your use case. You can change the language, tone, and instructions to fit your specific needs.

In the Personality field, describe your agent's role, behavior and what language or accents to speak with. Some things to note here:

  • We recommend writing your prompts in a markdown format
  • Be specific about what your agent should and shouldn't do
  • Short, clear bullet points work better than long paragraphs
  • Be careful to make sure instructions don't conflict—conflicting instructions will degrade performance
  • Experiment with different phrasings. Sometimes a small piece of rewording or using synonyms can deliver a big improvement in performance

Example personality prompt​

Simplified example for an English-language customer support agent:

# Role & task
You are a helpful customer support agent for Acme Corp. Your role is to:
- Greet customers warmly and ask how you can help
- Listen carefully to their questions or concerns
- Provide clear, accurate information about our products and services
- Remain patient and professional, even with frustrated customers
- Offer to transfer to a human agent for complex issues
- Keep your responses concise and conversational. Avoid technical jargon unless the customer uses it first

# Language
- Start the conversation in English
- When the customer speaks or requests a different language, switch to that language

Step 4: Set the transcription settings​

  1. Select your Transcription language from the dropdown (e.g., English, Spanish, Dutch)
  2. Optionally, add a Transcription prompt with specific terms or names that should be recognized accurately
Add jargon for more accurate transcriptions

Describing particular words or terms like company or product names or jargon from your industry in the transcription prompt will significantly improve the transcription accuracy.

Step 5: Save your agent​

Click Save at the bottom of the page to save your agent configuration.

What's next?​

You now have the basics of your agent configured! Next, let's customize the dialogue flow to match your specific use case.