For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
Atoms PlatformProduct OverviewDeveloper GuideAPI ReferenceMCPIntegrationsDeveloper ToolsChangelog
Atoms PlatformProduct OverviewDeveloper GuideAPI ReferenceMCPIntegrationsDeveloper ToolsChangelog
  • Get Started
    • Quick start
    • Platform overview
  • Single Prompt Agents
    • Overview
  • Conversational Flow Agents
    • Overview
      • General Settings
      • Languages
      • Voice Settings
      • Model Settings
      • Phone Number
      • Webhooks
  • Features
    • Concurrency
    • Knowledge Base
    • Webhooks
    • Widget
    • Integrations
    • Post-Call Metrics
    • Versioning
    • Variables
    • API Calls
  • Deployment
    • Phone Numbers
    • Audiences
    • Campaigns
  • Analytics & Logs
    • Overview
    • Testing
    • Conversation Logs
    • Locking
  • Integrate
    • Embed a voice agent
    • WebSocket SDK
  • Cookbooks
    • Using Cookbooks
  • Reference
    • Quick Reference
    • Glossary
  • Troubleshooting
    • Error reference
    • FAQ
    • Getting Help
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Voice AgentsModels
Voice AgentsModels
On this page
  • AI Model
  • Global Prompt
  • Knowledge Base
  • Speech Formatting
  • Language Switching
  • Advanced Settings
  • Next
Conversational Flow AgentsAgent Settings

Model Settings

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Voice Settings

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Phone Number

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Model Settings control how the AI behaves across your flow — the model powering responses, global instructions, and knowledge base connection.

Location: Settings tab → Model

Model settings

Model tab for Conversational Flow agents

Conversational Flow agents have Global Prompt and Knowledge Base in this tab since individual prompts are defined per-node in the workflow.

AI Model

SettingDescription
LLM ModelThe AI model (Electron, GPT-4o, etc.)
LanguagePrimary language for responses

Global Prompt

Set global instructions for your agent’s personality and behavior. This applies across all nodes (limit: 4,000 characters).

Use this for:

  • Personality traits
  • Behavioral guidelines
  • Consistent phrasing
  • Company-specific instructions

Node-specific prompts add to the Global Prompt. Use Global Prompt for consistency, node prompts for specific questions.

Knowledge Base

Connect a knowledge base for reference material.

OptionDescription
No Knowledge BaseAgent uses only prompts
[Your KB]Agent can search for answers

Speech Formatting

When enabled (default: ON), transcripts are automatically formatted for readability — punctuation, paragraphs, and proper formatting for dates and numbers.

Language Switching

Enable your agent to switch languages mid-conversation (default: ON).

Advanced Settings

SettingDefaultDescription
Minimum Words2Words before considering a switch
Strong Signal0.7Confidence for immediate switch
Weak Signal0.3Confidence for tentative detection
Consecutive Weak2Weak signals needed to switch

Defaults work for most cases. Adjust only if seeing unwanted switching.

Next

Knowledge Base

Create and manage knowledge bases

Voice Settings

Configure speech and pronunciation