NLPearl AI Voice Agent vs OpenAI Realtime API

Comparing the features of NLPearl AI Voice Agent to OpenAI Realtime API

Feature
NLPearl AI Voice Agent
OpenAI Realtime API

Capability Features

24/7 Operation
Advanced Pearls
7
AI Voice Agent
Civic Services
Claim Handling
Concierge Services
Customer Support
Education Support
Enterprise Privacy Commitment
Expanded Model Support Planned
Financial Guidance
Five New Voices
5
Function Calling
Healthcare Provider Support
Home Services
Human and Automated Safety Monitoring
Interruption Handling
Legal Support
No Training on Data Without Permission
Order & Shop Support
Order Processing
Pearl Types
Lead BoosterDebt NavigatorHelpDesk ProInsight CollectorMedAssistRoom ServiceLegal CompanionShopFlowConnectCareFinGuideEduMentorClaimEaseCivicConnectHomeAdvisor
Pearls Catalog
14
Playground Access
Prompt Caching Planned
Public Beta
Question Answering
Reference Client Available
Sales Team Support
Simple Pearls
7
Six Preset Voices
6
Speech-to-Speech
Streaming Audio Inputs/Outputs
Supports Text and Audio Inputs
TextAudio
Survey Collection
Ultra Low Latency
WebSocket Connection

Integration Features

Agora Integration
Chat Completions API Integration
Integrations Information
LiveKit Integration
OpenAI Node.js SDK Planned
OpenAI Python SDK Planned
Supports GPT-4o
gpt-4o-realtime-preview
Twilio Voice API Integration

Limitation Features

AI Disclosure Requirement
Audio Only Modality (Initially)
Lower Session Limits Tiers 1-4
Lower than 100
No Simultaneous Session Limit Anymore
Simultaneous Sessions Limit Tier 5
100
Usage Policy Restriction

Pricing Features

Approximate Audio Input Price
$0.06/minute
Approximate Audio Output Price
$0.24/minute
No Free Tier
Pricing Audio Input
$100/1M tokens
Pricing Audio Output
$200/1M tokens
Pricing Cached Audio Input
$20/1M tokens
Pricing Cached Text Input
$2.50/1M tokens
Pricing Information
Pricing Text Input
$5/1M tokens
Pricing Text Output
$20/1M tokens