Silvia vs OpenAI Realtime API

Comparing the features of Silvia to OpenAI Realtime API

Feature
Silvia
OpenAI Realtime API

Capability Features

Adaptive Dictation
Dictation Extension
Enterprise Privacy Commitment
Expanded Model Support Planned
Finish Speaking Detection
Five New Voices
5
Function Calling
Human and Automated Safety Monitoring
Interruption Handling
Multilingual Input
No Training on Data Without Permission
Playground Access
Prompt Caching Planned
Public Beta
Reference Client Available
Seamless Language Switching
Six Preset Voices
6
Speech-to-Speech
Streaming Audio Inputs/Outputs
Supports English and Spanish
EnglishSpanish
Supports Text and Audio Inputs
TextAudio
Ultra Low Latency
Upcoming Language Support
FrenchRomanianGermanDutch
WebSocket Connection

Integration Features

Agora Integration
App Store Availability
Chat Completions API Integration
Chat Platform Integration
iMessageWhatsAppSignalTelegramMessengerany other app where you type
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 Android Support
No Mention of Export Options
No Simultaneous Session Limit Anymore
No Web Platform
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 Tier
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