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Create your first agent

This guide walks you through setting up a basic agent in Studio 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 to create a new template agent
  4. Give your agent a name

Step 2: Choose a voice​

Stellar offers multiple voices that support over 50 languages and can be tuned to speak in regional dialects or accents. Each voice has its own character — some are warm and expressive, others are more neutral and professional — so you can match the tone of voice to your brand.

Experiment with different voices in the Playground to find the best fit for your use case and language.

Step 3: Define your agent's personality​

The personality prompt defines how your agent behaves. The template agent comes with a basic personality that you can customize.

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

  • Write prompts in markdown format
  • Be specific about what your agent should and shouldn't do
  • Short, clear bullet points work better than long paragraphs
  • Avoid conflicting instructions — they will degrade performance
  • Experiment with phrasing. Small rewording changes can significantly improve performance

Example personality prompt​

# 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
  2. Optionally, configure Allowed languages for language switching — these are the languages your agent can switch to when explicitly requested during a conversation. If left empty, all supported languages are available.
  3. Optionally, add a Transcription prompt with specific terms or names that should be recognized accurately
Transcription prompt

Adding company names, product names, and industry jargon to the transcription prompt significantly improves transcription accuracy.

Step 5: Save your agent​

Click Save in the editor header to save your agent configuration.

What's next?​

Next, customize the dialogue flow to handle your specific use case.