Retell AI vs Microsoft Copilot for Windows

Comparing the features of Retell AI to Microsoft Copilot for Windows

Feature
Retell AI
Microsoft Copilot for Windows

Capability Features

Agent Builder
Agent Testing
API Access
Appointment Scheduling
Auto-Sync Knowledge Base
Automatic Conversation End
Automatic Scalability
Millions of concurrent calls
Batch Calls
Branded Caller ID
Call History
Call Monitoring
Call Transfer Options
Chime Notification
Copilot Voice Floating UI
Copilot Wake Word
Edge Case Handling
Feedback Mechanism
Global Reach
Hands-Free Voice Activation
Industry Compliance
SOC 2 Type 1&2HIPAAGDPR
LLM-Powered
Low Latency
500ms latency
Manual Conversation End
Mic Usage Indicator
Multi-language Support
18+ languages
Multiple Deployment Channels
AI phone callsWeb callsSMSChat
Natural Language Conversations
Navigate Through IVR
No Concurrency Limits
On-Device Wake Word Detection
Platform Uptime
99.99% uptime
Verified Phone Numbers
Voicemail Detection

Integration Features

CRM/Automation Integrations
Cal.comn8nGoHighLevelTwilioVonageOpenAI
Integrates with Any CRM
Integrates with Any Telephony
Integrates with Automation Platforms
Integrates with Databases
Microsoft Store Update
Telephony Integration
TwilioVonageTelnyxPlivoRingCentral

Limitation Features

Feature Not Default
Internet Required for Voice Responses
No Desktop App Mentioned
No Local Audio Storage
No Mentioned Self-hosting
No Public Pricing Listed
Requires PC Unlocked
Version Requirement
1.25051.10.0 or higher
Wake Word Only in English
English only
Windows Insider Availability
Insiders only

Pricing Features

Free Tier
Pricing Plan Details