Inworld AI Platform vs Unreal Speech

Comparing the features of Inworld AI Platform to Unreal Speech

Feature
Inworld AI Platform
Unreal Speech

Capability Features

Advanced Emotion Control (Pro+)
API Key Authentication
Asynchronous Requests
Available to Everyone
Cost Reduction
>95% cost reduction
Dashboard Access
Demo Characters
Hades (Game NPC)Alex (Tutor)Dennis (Therapist)Ashley (AI Friend)Mark (Call Center)
Hosted, On-Premise, On-Device
HostedOn-PremiseOn-Device
Max Audio Duration
10 hours
Max Monthly Characters
7000000000
Multilingual TTS Support
Non-Verbal Control
Open Source
Per-sentence Timestamps
Per-word Timestamps
Production Ready Infrastructure
Provider-Agnostic
Realtime Pipelines
Realtime Streaming Output
Scaling Support
SOTA Multimodal AI
Streaming Endpoint
Streaming Latency
0.3s
Supported Audio Codecs
libmp3lamepcm_mulaw
Supported Bitrates
320k256k192k128k96k64k48k32k16k
Supported Language List
US EnglishUK EnglishMandarin ChineseHindiSpanishPortugueseJapaneseFrenchItalian
Supported Voices
48
Synchronous Requests
Templates for Realtime Pipelines
Text-to-Speech API
/stream/speech/synthesisTasks/streamWithTimestamps
TTS Playground
Uptime SLA
99.9%
Usage Commercial Rights
Visual Graph System
Voice Cloning
Voice Parameter Control
SpeedPitch
WebSocket Streaming

Integration Features

API Documentation
API Integration
PythonNode.jsReact NativeBash
Integrations Information
VapiLiveKit
One API Key
Sign In Methods
GoogleEmail
Supported Export Formats
MP3PCM µ-law

Limitation Features

Attribution Requirement
Free plan requires attribution
Max Characters /speech
3000
Max Characters /stream
1000
Max Characters /synthesisTasks
500000
Usage Quotas
13/1000

Other Features

Affiliate Program
Comparison to Competitors
AmazonMicrosoftGoogleElevenLabsPlay.ht

Pricing Features

Additional Usage Price
Basic - $16 per 1M charactersPlus - $12 per 1M charactersPro - $10 per 1M charactersEnterprise - $8 per 1M characters
Elite Plan Quota
625000000
Enterprise Plan Price
$4999/month
Free Characters Limit
250000
Free Plan Rollover
Free Tier
Has Free Tier
Paid Plan Rollover
Pricing Compared to Competitors
>90% cheaper than competing models
Pricing Plans
Subscription Plans
BasicPlusProEnterprise
Trial Period