| Feature | Chat GPT | Copilot | Perplexity |
|---|---|---|---|
| Base Technology | Open AI's GPT models (GPT-4o, GPT-4o mini) | GPT-4 with Bing integration | Mixture of expert models |
| Information Accuracy | Depends on pre-trained knowledge, limited web access | Real-time but can be inaccurate | Excels in accuracy, real-time |
| Interaction Style | Natural conversations | Creative, Balanced, Precise styles | Structured responses |
| Specialized Features | • Custom instructions • Web browsing (paid) • Image generation |
• DALL-E 3 integration • Microsoft ecosystem integration |
• Advanced article summarization • Various writing modes |
| Limitations | Free version has knowledge cut-off | • 5 responses per conversation • 4000 characters per prompt |
Lacks image generation capability |
| Price | Free plan available | Free tier Premium: monthly fee |
Free plan available Professional plan: monthly fee |
| Best For | Versatile conversations and content generation | General-purpose AI with web search | Research and information retrieval |
| Data Collection | Collects personal information and conversation history | Stores user prompts and responses within Microsoft 365 service boundaries | Collects API usage data and user account information |
| Data Usage | May use data to improve models unless users opt out; does not sell data | Does not use customer data to train models; data is encrypted and stored securely | Does not use data for model training unless users opt in |
| Data Retention | Users can delete chat history; stored for up to 30 days if history is off | Data is stored with encryption and can be managed or deleted by users | Retains data for 30 days, after which it may be deleted |
| Data Sharing | Shares minimal data with trusted providers; no third-party marketing use | Data is not shared outside Microsoft without consent; adheres to strict privacy policies | Does not share data with third parties for marketing; strict confidentiality measures |
| User Control | Users can manage data settings and export their data; opt-out options available | Users can delete interaction history via the My Account portal | Users can opt out of data retention policies through account settings |