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The Model Tab controls the AI model powering your agent and how it handles language. This includes model selection, speech formatting, and advanced language switching.
[IMAGE: Full Model tab with Language Switching section expanded]

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Location

Left Sidebar → Agent Settings → Model tab

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AI Model

SettingControlExample
LLM ModelDropdownGPT-4o
LanguageDropdownEnglish

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Model Selection

Choose the LLM that powers your agent’s understanding and responses. This is the same as the Prompt Section model dropdown.

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Language

Set the primary language. This should match your voice selection’s language capability.

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Speech Formatting

SettingToggleDefault
Speech FormattingON/OFFON
When enabled, the system formats responses for natural speech:
  • Expands abbreviations
  • Handles numbers naturally
  • Formats dates and times for speaking
Example:
  • Written: “Your appt is on 1/15/24 at 3:00pm”
  • Spoken: “Your appointment is on January fifteenth, twenty twenty-four at three p m”

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Language Switching

SettingToggleDefault
Language SwitchingON/OFFON
When enabled, the agent can detect when a caller switches languages and respond in kind.

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Advanced Language Switching Settings

When language switching is enabled, additional controls appear:
Controls how accurately agent detects language switches. Higher thresholds reduce false switches; lower thresholds allow quicker changes.
SettingRangeDefaultDescription
Minimum Words for Detection1-102Words needed before switching
Strong Signal ThresholdLow-High0.7Confidence for immediate switch
Weak Signal ThresholdLow-High0.3Confidence for tentative detection
Consecutive Weak Signals1-82Weak signals needed to switch

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Understanding the Settings

Minimum Words for Detection How many words in the new language before considering a switch. Higher = more conservative. Strong Signal Threshold If confidence is above this level, switch immediately. Higher = requires more certainty. Weak Signal Threshold Confidence level that counts as “maybe” a language switch. Below this is ignored. Consecutive Weak Signals How many weak signals in a row before switching. Higher = more conservative.

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Use Cases

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Single Language (Simple)

  • Set primary language
  • Disable Language Switching
  • Agent only speaks one language

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Multi-Language (Flexible)

  • Select multi-language voice
  • Set primary language
  • Enable Language Switching
  • Agent adapts to caller’s language

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Conservative Multi-Language

  • Enable Language Switching
  • Increase Minimum Words (5+)
  • Increase Strong Signal Threshold (0.8+)
  • Agent only switches when very confident

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Saving Changes

After making changes, you’ll see: 
"You have unsaved changes"
[Discard] [Save]
Click Save to apply changes.

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What’s Next

Phone Number Tab

Assign a phone number

Voice Tab

Configure voice settings