Coval vs OpenAI Realtime API

Comparing the features of Coval to OpenAI Realtime API

Feature
Coval
OpenAI Realtime API

Capability Features

Audio Inputs
Audio Replay
Built-in Metrics
latencyaccuracytool-call effectivenessinstruction compliance
Custom Environments
Custom Metrics
Enterprise Privacy Commitment
Expanded Model Support Planned
Five New Voices
5
Fully Customizable Voice
Function Calling
Human and Automated Safety Monitoring
Human-in-the-Loop
Interruption Handling
No Training on Data Without Permission
Performance Alerts
Playground Access
Production Call Monitoring
Prompt Caching Planned
Prompt Change Re-simulation
Public Beta
Reference Client Available
Regression Tracking
Scenario-Based Testing
Simulate Conversations
Six Preset Voices
6
Speech-to-Speech
Streaming Alerts
Streaming Audio Inputs/Outputs
Supports Text and Audio Inputs
TextAudio
Text Chat Compatible
Transcripts as Input
Ultra Low Latency
Voice AI Features
WebSocket Connection
Workflow Tracing
Workflow-Based Simulation

Integration Features

Agora Integration
Chat Completions API Integration
Developer-Focused Integrations
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 Mentioned Integrations
No Pricing Information
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
Free Trial/Demo
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