Call AI vs OpenAI Realtime API

Comparing the features of Call AI to OpenAI Realtime API

Feature
Call AI
OpenAI Realtime API

Capability Features

24/7 Availability
Account Management
Business Use Case Support
Customer supportSalesTrainingExecutive assistanceAI podcast hosts
Call Transcripts
Custom AI Bot Creation
Enterprise Privacy Commitment
Expanded Model Support Planned
Feedback-Based Improvement
Five New Voices
5
Function Calling
Human and Automated Safety Monitoring
Interruption Handling
Multiple AI Personas
Sophie (Therapist)Alex (Daily planner)Michelle (Parenting coach)Marvin (Tech support)Page (Idea partner)Ryan (Journaling pal)Custom AI bot
No Training on Data Without Permission
Personal Memory (In Development)
Playground Access
Proactive AI Features
Prompt Caching Planned
Public Beta
Reference Client Available
Scheduled Calls
Six Preset Voices
6
Speech-to-Speech
Streaming Audio Inputs/Outputs
Supports Text and Audio Inputs
TextAudio
Ultra Low Latency
Voice Customization
WebSocket Connection

Integration Features

Agora Integration
Calendar Integrations
Chat Completions API Integration
Email Integration
Google Search Integration
LiveKit Integration
Notion Integration
OpenAI Node.js SDK Planned
OpenAI Python SDK Planned
Phone Integration
Planned Google Meet Integration
Planned Microsoft Teams Integration
Planned Web Integration
Planned Zoom Integration
Supports GPT-4o
gpt-4o-realtime-preview
Twilio Voice API Integration

Limitation Features

AI Disclosure Requirement
Audio Only Modality (Initially)
Human Therapist Replacement Limitation
Lower Session Limits Tiers 1-4
Lower than 100
No API Mentioned
No Simultaneous Session Limit Anymore
No Web Chat Yet
Payment Required After Free Minutes
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
Free Call Duration
4
Free Tier
No Free Tier
Pay-per-minute Rate
15 cents per minute
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 Text Input
$5/1M tokens
Pricing Text Output
$20/1M tokens