Shoulder Surfer

AI-powered article summaries on hover, deep-dive research, and interactive page analysis with LLM.

Shoulder Surfer brings instant AI-powered insights to every link you hover over. ★ HOVER SUMMARIES Hover over any link for a 1–2 sentence AI summary + key facts. Built on OpenRouter LLM with local caching, no interruption to your reading. ★ DEEP-DIVE RESEARCH (Deep Read) Click Deep Read to automatically explore related links and synthesize a broader analysis. Agentic pipeline selects and fetches context-rich content, then generates 3–5 recommendations with full summaries. ★ HIGHLIGHT KEY INSIGHTS Right-click → "Highlight Key Insights" to find and visually mark the most important statements on any page. ★ CHAT-BASED HIGHLIGHTING Describe what you're looking for ("quotes about climate impact") and the AI finds and highlights matching passages in real-time. ★ CUSTOM SORTING Re-rank any list or table by your criteria ("highest rated", "most recent"). ★ PAGE Q&A Ask a question about the page and get an instant answer with quoted sources. ★ PAGE SUMMARY Hit Cmd/Ctrl+Space → Read mode for a full-page summary plus key insights. ★ MODEL PICKER Choose between 3 LLM tiers (fast 20b, mid-tier 120b, premium grok-4.1-fast) on-the-fly with Ctrl+1/2/3. REQUIREMENTS: - OpenRouter API key (get one free at openrouter.ai, pay only for inference) - Chrome 120+