OpenAI Realtime API vs Voiser

Comparing the features of OpenAI Realtime API to Voiser

Feature
OpenAI Realtime API
Voiser

Capability Features

AR/VR Support
Automatic Punctuation
Available Voices
550
Batch Processing
Country Coverage
200
Dialects Supported
135
Emotion Voice Options
Enterprise Privacy Commitment
Expanded Model Support Planned
Export Formats
WordExcelTxtSrt
Five New Voices
5
Function Calling
Human and Automated Safety Monitoring
Interruption Handling
Languages Supported
75
Minimum Accuracy Claim
%99.9 success rate
No Training on Data Without Permission
Online Dictation
Playground Access
Profanity Filtering
Prompt Caching Planned
Public Beta
Reference Client Available
Six Preset Voices
6
Smart Guide
Speaker Identification
Speech-to-Speech
Speech-to-Text
Streaming Audio Inputs/Outputs
Subtitle Customization
Supports Text and Audio Inputs
TextAudio
Talking Avatar
Text to Speech
Text-to-Video
Ultra Low Latency
Voice Cloning
Voice Quality Levels
HDHQUHD
WebSocket Connection
YouTube Dubbing

Integration Features

Agora Integration
API Access
Chat Completions API Integration
ChatGPT Integration
Email Login
Facebook Login
File Format Support (Audio)
.mp3.wav.flac.aac.wma.ogg.aiff
File Format Support (Video)
.avi.mp4.mov.webm.mpeg.3gp
Google Login
LiveKit Integration
OpenAI Node.js SDK Planned
OpenAI Python SDK Planned
Supports GPT-4o
gpt-4o-realtime-preview
Twilio Voice API Integration
URL Import Support
Wordpress Integration
YouTube Import

Limitation Features

AI Disclosure Requirement
Audio Only Modality (Initially)
Lower Session Limits Tiers 1-4
Lower than 100
Maximum Usage Without Payment
50 characters for TTS, 5 minutes for STT
No Simultaneous Session Limit Anymore
Premium Voices (Enterprise)
Simultaneous Sessions Limit Tier 5
100
Studio Free Limit
50
Transcription Limit Free Tier
5
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
Quota Extension Via Purchase