Privacy Policy for MultiLLM
Last updated: January 17, 2026
Overview
MultiLLM is a Chrome extension that sends prompts to multiple AI assistants (Claude, ChatGPT, and Gemini) simultaneously. This privacy policy explains how the extension handles your data.
Data Collection
MultiLLM does not collect, store, or transmit any personal data to external servers operated by the extension developer. All data remains on your device.
How MultiLLM Works
Session Cookies
The extension reads authentication cookies from Claude (claude.ai), ChatGPT (chatgpt.com), and Gemini (gemini.google.com) to send prompts using your existing logins. These cookies are:
- Only accessed when you explicitly send a prompt
- Never stored, collected, or transmitted externally
- Used solely to authenticate requests on your behalf
Local Storage
User preferences and conversation history are stored locally on your device using Chrome's storage API (chrome.storage.local). This includes:
- Theme preferences
- Selected AI providers
- Conversation history
This data never leaves your device and is not accessible to the extension developer.
Communication with AI Providers
When you send a prompt, it is transmitted directly from your browser to the AI providers you select:
- Claude (claude.ai, api.claude.ai)
- ChatGPT (chat.openai.com, chatgpt.com)
- Gemini (gemini.google.com)
No data passes through any intermediary servers. The extension facilitates direct communication between your browser and these services.
Data Sharing
MultiLLM does not share any data with third parties. The extension developer does not have access to:
- Your prompts or conversations
- Your login credentials
- Your browsing history
- Any personal information
Permissions Used
| Permission | Purpose |
|---|---|
| Cookies | Read session cookies to authenticate with AI providers when you send a prompt |
| Storage | Save your preferences and conversation history locally |
| Tabs | Open the extension interface and detect AI provider tabs |
| Scripting | Inject prompts into AI provider chat interfaces and capture responses |
| Host Permissions | Communicate with claude.ai, chatgpt.com, and gemini.google.com |
Third-Party Services
When you use MultiLLM to send prompts, your data is subject to the privacy policies of the AI providers you choose to use:
Changes to This Policy
If this privacy policy is updated, the changes will be reflected in this document with an updated "Last updated" date.
Contact
For questions about this privacy policy, please contact the developer at the official website.