Four Line

Your ultimate AI command center. Access OpenAI, Claude, Gemini, Grok, and Kimi in a powerful split-view dashboard.

Stop tab-switching. Start collaborating. Four Line is the premier AI workspace designed for power users who rely on multiple AI models. Instead of jumping between tabs, Four Line brings your favorite AI tools, into a single, high-performance split-view dashboard. Whether you're comparing code across models, fact-checking Gemini against Claude, or simply maintaining multiple research threads, Four Line provides the visual clarity and professional tools you need to stay in the flow. 🚀 Key Features ⚡️ Universal Broadcast: Type once, send everywhere. Use the Broadcast Input to send the same prompt to all active AI panes simultaneously. Perfect for comparing responses instantly. 🌓 Split-View Design: Seamlessly toggle between single-pane focus and side-by-side comparison. View two (or more) AIs in a perfectly aligned, responsive layout. ⌨️ Slash Commands: Access your personal "Library" of prompts and notes directly from the input bar. Just type / to instantly insert common instructions or context snippets. 🔒 Privacy-First / No API Keys: Four Line uses your existing accounts. No need to manage expensive API keys or share your data with third-party servers. Your conversations stay between you and the AI providers. 📁 Workspace Management: Organize your AI workflow with tab groups. Save, export, and import your entire workspace configuration to stay productive across devices. 🎨 Premium UI/UX: A sleek, minimal interface designed for focus. Includes deep dark mode, light mode, collapsible sidebars, and customizable layout positions. 🤖 Supported Models (and more) Four Line is compatible with any web-based AI chat interface. Out of the box, it includes presets for popular platforms and you can also add any custom URL to bring in additional tools and services. 🛠 How It Works Install & Open: Click the Four Line icon or open a new tab to launch your workspace. Add Your Models: Choose from presets or add any website URL. Compare & Conquer: Use the split-view and broadcast features to master your AI-assisted tasks.