Handy vs OpenAI Realtime API

Comparing the features of Handy to OpenAI Realtime API

Feature
Handy
OpenAI Realtime API

Capability Features

Cross Platform
Customizable Key Bindings
Enterprise Privacy Commitment
Expanded Model Support Planned
Five New Voices
5
Function Calling
Human and Automated Safety Monitoring
Interruption Handling
Keyboard Shortcut Activation
No Training on Data Without Permission
Open Source
Playground Access
Private Local Processing
Prompt Caching Planned
Public Beta
Push To Talk
Reference Client Available
Six Preset Voices
6
Speech-to-Speech
Speech-to-Text
Streaming Audio Inputs/Outputs
Supports Text and Audio Inputs
TextAudio
Toggle Transcription Mode
Ultra Low Latency
WebSocket Connection

Integration Features

Agora Integration
Chat Completions API Integration
LiveKit Integration
OpenAI Node.js SDK Planned
OpenAI Python SDK Planned
Other Platform Support
Supports GPT-4o
gpt-4o-realtime-preview
Twilio Voice API Integration
Windows Support

Limitation Features

AI Disclosure Requirement
Audio Only Modality (Initially)
Lower Session Limits Tiers 1-4
Lower than 100
No Cloud Dependency
No Simultaneous Session Limit Anymore
Simultaneous Sessions Limit Tier 5
100
Single Purpose Design
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