Inworld AI Platform vs OpenAI Realtime API

Comparing the features of Inworld AI Platform to OpenAI Realtime API

Feature
Inworld AI Platform
OpenAI Realtime API

Capability Features

Advanced Emotion Control (Pro+)
API Key Authentication
Available to Everyone
Cost Reduction
>95% cost reduction
Demo Characters
Hades (Game NPC)Alex (Tutor)Dennis (Therapist)Ashley (AI Friend)Mark (Call Center)
Enterprise Privacy Commitment
Expanded Model Support Planned
Five New Voices
5
Function Calling
Hosted, On-Premise, On-Device
HostedOn-PremiseOn-Device
Human and Automated Safety Monitoring
Interruption Handling
Multilingual TTS Support
No Training on Data Without Permission
Non-Verbal Control
Open Source
Playground Access
Prompt Caching Planned
Provider-Agnostic
Public Beta
Realtime Pipelines
Realtime Streaming Output
Reference Client Available
Scaling Support
Six Preset Voices
6
SOTA Multimodal AI
Speech-to-Speech
Streaming Audio Inputs/Outputs
Supports Text and Audio Inputs
TextAudio
Templates for Realtime Pipelines
TTS Playground
Ultra Low Latency
Visual Graph System
Voice Cloning
WebSocket Connection

Integration Features

Agora Integration
Chat Completions API Integration
Integrations Information
VapiLiveKit
LiveKit Integration
One API Key
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 Simultaneous Session Limit Anymore
Simultaneous Sessions Limit Tier 5
100
Usage Policy Restriction
Usage Quotas
13/1000

Pricing Features

Approximate Audio Input Price
$0.06/minute
Approximate Audio Output Price
$0.24/minute
Has 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 Compared to Competitors
>90% cheaper than competing models
Pricing Plans
Pricing Text Input
$5/1M tokens
Pricing Text Output
$20/1M tokens