Simple Chat Hub

Ask ChatGPT, Gemini, DeepSeek, Doubao together. Compare replies, keep chatting. Your web accounts. No API key.

Ask once. AI answers, side by side. Simple Chat Hub puts the websites of ChatGPT, Gemini, DeepSeek, Doubao, Kimi and other AI platforms side by side in one window. Type a question once in the shared input: each platform receives it and answers. Keep chatting on whichever platform you want to explore further. Use the platforms’ own websites and your existing accounts. No API key or Simple Chat Hub account is needed. Ways to use it - Understand a concept. Ask how correlation and causation differ, compare examples and explanations, then follow up on the platform that explains it most clearly. - Review information. Give several AIs the same team update, compare their key points and questions to investigate, then check the original material. - Troubleshoot a technical problem. Ask why a page sends the same API request twice, compare approaches and explore one in more depth. Features - Ask once, compare side by side. Send the same question to every platform in the current space through the shared input. Read their answers side by side. Add files by selecting, pasting or dragging them in. - Follow up separately. Each platform keeps its own conversation context. Follow up in any platform’s input, or use just one platform. - Spaces for your tasks. Save different platform combinations for learning, analysis and coding. Choose names and icons, and switch with keyboard shortcuts. Keep multiple platform tabs per column, adjust column widths and collapse the sidebar. - Save conversations and return anytime. Save the platforms’ current conversation links and layout, then reopen them with one click. - Prompt library. Save useful instructions and insert them with a click or shortcut. Use prompt optimization to express your ideas more clearly. - Long screenshots. Save a complete conversation from one platform as a long image, with a width suited to desktop or mobile reading. - Launch from other tools. Copy a launch link from the space menu, configure it in Alfred or another launcher, and open Hub with a question to send automatically or just fill in. - More details. Over 30 built-in AI platforms from China and around the world, plus custom websites. Custom shortcuts, light and dark themes, and 12 interface languages. Getting started 1. Install the extension and click the Simple Chat Hub icon in your browser toolbar. 2. Sign in to the platforms you need in their columns. If sign-in does not work inside a column, sign in in a new browser tab, then refresh the column. 3. Choose your platform combination and save it as a space. 4. Ask through the shared input, read answers side by side and follow up wherever you want to go deeper. Usage notes The extension is free. Accounts, subscriptions, usage limits and network requirements are set by each platform. Automatic filling and sending depend on website structure. Platform updates may temporarily require manual sending; we maintain support through configuration updates. Attachment delivery also depends on the platform. A few platforms, such as Grok, cannot be used normally in the extension; use the desktop client or open them in a new tab. When you use prompt optimization, your input is sent to the Simple Chat Hub server for processing. The extension collects usage statistics and error information to improve the product; these do not include your questions or conversation content. The desktop client offers the same features on Windows, macOS and Linux. Download it from the website. Website: https://chathub.aipilot.cc/