OpenAI Realtime API vs Voice Dream Reader

Comparing the features of OpenAI Realtime API to Voice Dream Reader

Feature
OpenAI Realtime API
Voice Dream Reader

Capability Features

AI Voice Technology
Document Support
Email Support
Enterprise Privacy Commitment
Expanded Model Support Planned
Faster Reading
3x faster than reading
Five New Voices
5
Function Calling
Handles Accents and Dialects
Human and Automated Safety Monitoring
Interruption Handling
No Training on Data Without Permission
Offline Mode
PDF Support
Playground Access
Premium Voices (Enterprise)
Over 200 human-quality voices
Privacy Protection
Prompt Caching Planned
Public Beta
Reference Client Available
Six Preset Voices
6
Speech-to-Speech
Streaming Audio Inputs/Outputs
Supports Text and Audio Inputs
TextAudio
Text to Speech
Textbook Support
Ultra Low Latency
Upload Content
ArticlesPDFsCamera ScansEbooksAudiobooksTextbooksDocumentsEmails
Web Page Reading
WebSocket Connection

Integration Features

Agora Integration
Browser Extensions
Chat Completions API Integration
iPhone Support
LiveKit Integration
Mac Support
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
Free Trial
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 Text Input
$5/1M tokens
Pricing Text Output
$20/1M tokens