Paraspeech vs OpenAI Realtime API

Comparing the features of Paraspeech to OpenAI Realtime API

Feature
Paraspeech
OpenAI Realtime API

Capability Features

Apple Silicon Optimization
Enterprise Privacy Commitment
Expanded Model Support Planned
Fast Transcription
Fast Transcription Speed
165 WPM typical
Five New Voices
5
Function Calling
Human and Automated Safety Monitoring
Interruption Handling
Lightweight Resource Use
Natural Language Speech Recognition
No Training on Data Without Permission
No Upload to Server
Playground Access
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
Ultra Low Latency
Voice Data Privacy
WebSocket Connection
Works in Background
Works Offline
Works Without Internet

Integration Features

Agora Integration
Chat Completions API Integration
Device Compatibility
macOS 13.5+Apple Silicon (M-series)
LiveKit Integration
Microphone Access
OpenAI Node.js SDK Planned
OpenAI Python SDK Planned
Plugin Requirement
Supported Apps
All macOS apps
Supports GPT-4o
gpt-4o-realtime-preview
System-wide Integration
Twilio Voice API Integration

Limitation Features

AI Disclosure Requirement
Audio Only Modality (Initially)
Initial Internet Requirement
Lower Session Limits Tiers 1-4
Lower than 100
No API or Plugin Integration
No Simultaneous Session Limit Anymore
No Windows Support
Simultaneous Sessions Limit Tier 5
100
Supported RAM
8GB M1 Macs or higher
Usage Policy Restriction

Other Features

Typing Speed Reference
75 WPM typical

Pricing Features

Approximate Audio Input Price
$0.06/minute
Approximate Audio Output Price
$0.24/minute
Free Download
Lifetime License
One-time purchase
No Free Tier
No Subscription Required
Perpetual Ownership
Price
$39.99
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
Unrestricted Usage
Updates Included
12 months