Lumina - AI Copilot for the web

Explain anything on your screen - Slides, Papers, News, Articles - using ChatGPT, Gemini and Claude.

Lumina gives you an AI "Second Brain" right in your browser. Instantly analyze the content of any tab—whether it’s a YouTube lecture, a PDF slide deck, or a complex documentation page. Lumina sees what you see and explains it in seconds. ✨ Free Forever Features (No Subscription Needed) Google Gemini Integration: Use the blazing fast Gemini Flash model for free (Bring Your Own Key). Visual Analysis: "Snap" a screenshot of your tab and ask questions about charts, diagrams, or UI. Page Context: Automatically reads the text of the page for context-aware answers. Clean Interface: A beautiful, distraction-free side panel that fits your workflow. 🔓 Advanced Models (Bring Your Own Key) Unlock the world's smartest models with your own API keys: Premium Models: Switch instantly between OpenAI GPT-4o and Anthropic Claude 3.5 Sonnet. Unlimited History: Automatically save your best prompts and explanations to review later. Voice Input: Speak your queries naturally. Smart Context: Auto-scrapes page text for perfect answers every time. 🔒 Privacy First Start Free: Use your own API key for Gemini. Pay only for what you use, directly to Google (often free for low usage). Your Data Stays Yours: We do not store your data or API keys on our servers. Everything is stored locally in your browser. ⚡ Perfect For... Students: Snapshot lecture slides and get instant summaries. Developers: Debug code snippets or get explanations for complex docs. Researchers: Switch between Claude (best for writing) and GPT-4o (best for reasoning) in one click. Note: This extension utilizes your own API keys. A Lumina Pro License is required to unlock the interface for OpenAI, Anthropic, and DeepSeek providers.