Our Verdict
Based on ratings, features, pricing, and capabilities, Microsoft Copilot edges ahead in this comparison. Microsoft Copilot offers better value and broader platform support.
Feature
OpenAI Platform
Microsoft Copilot
Rating
⭐ 4.8/5
⭐ 4.6/5
Free Plan
Starting Price
$2.5/mo
$20/mo
Monthly Visits
85.0M
290.0M
API Support
Open Source
AI Capabilities
Mobile App
Desktop App
Browser Extension
Integrations
4 apps
5 apps
Team Size
ENTERPRISE
ENTERPRISE
OpenAI Platform Pros & Cons
Pros
- Industry benchmark for tool use and function calling
- Extensive documentation and SDK ecosystem
- High reliability and SLA tiers
Cons
- Usage-based billing can scale quickly on high token volume
- Rate limits require tier elevation based on payment history
Microsoft Copilot Pros & Cons
Pros
- Deep enterprise security and compliance
- Built natively into Windows, Word, and Excel
- Free web version includes GPT-4o access
Cons
- Microsoft 365 Copilot add-on requires business license
- Sidebar browser interface can feel crowded
OpenAI Platform Key Features
- Realtime Voice WebSocket API
- Assistants API with Code Interpreter
- Batch Processing API (50% Discount)
- Fine-Tuning Portal
Microsoft Copilot Key Features
- Windows 11 Native Integration
- Microsoft 365 Copilot for Office
- DALL-E 3 Image Generation
- Commercial Data Protection