Home
Articles
Home
Microsoft Copilot for Windows
Compared to iSpeech TTS & Speech API
Microsoft Copilot for Windows vs iSpeech TTS & Speech API
Comparing the features of Microsoft Copilot for Windows to iSpeech TTS & Speech API
Feature
Microsoft Copilot for Windows
iSpeech TTS & Speech API
Capability Features
API Requests per Month
100000000
Automatic Conversation End
Chime Notification
Cloud and Embedded TTS
Copilot Voice Floating UI
Copilot Wake Word
Create IVR Prompts
Custom Voice Cloning
Developer Signups
80000
Feedback Mechanism
Hands-Free Voice Activation
Manual Conversation End
Mic Usage Indicator
On-Device Wake Word Detection
Open Source SDKs
SDK Availability
Speech Rate Adjustment
Slow
Regular
Fast
Speech Recognition
Supported Language List
US English
UK English
Australian English
US Spanish
Chinese
Hong Kong Chinese
Taiwan Chinese
Japanese
Korean
Canadian English
Hungarian
Brazilian Portuguese
European Portuguese
European Spanish
European Czech
European Danish
European Finnish
European French
European Norwegian
European Dutch
European Polish
European Italian
European Turkish
European Greek
European German
Russian
Swedish
Canadian French
Arabic
Talking Stickers
Text to Speech
Integration Features
Audiobook Support
Chrome Extension
Connected Vehicle Integration
Microsoft Store Update
Mobile Integration
SAPI Integration
Limitation Features
Feature Not Default
Internet Required for Voice Responses
No Local Audio Storage
Registration Required for Downloads
Requires PC Unlocked
TTS for Non-Commercial Use Only
Version Requirement
1.25051.10.0 or higher
Wake Word Only in English
English only
Windows Insider Availability
Insiders only
Pricing Features
Free Tier
IVR Prompts Free Sample