Bolna Voice AI vs OpenAI Realtime API

Comparing the features of Bolna Voice AI to OpenAI Realtime API

Feature
Bolna Voice AI
OpenAI Realtime API

Capability Features

24x7 AI Helpline
API Custom Payload
Bulk Calling at Scale
Concurrent Calls Support
250+
Connect Any Model
ASRLLMTTS20+ models
Custom API Triggers
Data Privacy & Residency
India / USA specific data residency, on-prep deployment
Enterprise Privacy Commitment
Expanded Model Support Planned
Five New Voices
5
Function Calling
Human Agent Escalation
Human and Automated Safety Monitoring
Human-in-the-Loop Labeling
Inbound and Outbound Calls
InboundOutbound
Indian Language Support
HindiHinglishTamilTeluguEnglish10+ Indian and Foreign Languages
Industry Use Cases
EcommerceEdTechHealth TechBFSIHospitality
Integrated Speech and Telephony
Interruption Handling
Latency
<300ms
Live Call Trigger
Model Switching
Multi-language Support
Natural Conversation
No Training on Data Without Permission
No-Code Agent Creation
Playground Access
Prebuilt Templates
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
WebSocket Connection
Workflow Integration
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Integration Features

Agora Integration
Chat Completions API Integration
Developer SDKs
PythonJavaScriptcURL
LiveKit Integration
OpenAI Node.js SDK Planned
OpenAI Python SDK Planned
Public API
Supports GPT-4o
gpt-4o-realtime-preview
Twilio Voice API Integration
Workflow Automation Integrations
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Limitation Features

AI Disclosure Requirement
Audio Only Modality (Initially)
Lower Session Limits Tiers 1-4
Lower than 100
No Explicit Quotas or Limits
No File Format Support Listed
No Mention of Free Tier
No Public Pricing Listed
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
Enterprise Plan Available
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