ChatHub is an all-in-one chatbot client browser extension that allows users to simultaneously use multiple chatbots such as ChatGPT, Bing, Google Bard, Claude, and more. With ChatHub, users can chat with several chatbots at once, compare the results from different language models side by side, and even use the GPT-4 model via ChatGPT Plus or an OpenAI API key. Additionally, ChatHub offers features like the ability to manage custom prompts, learn from community prompts, quickly launch anywhere in the browser with a keyboard shortcut, render markdown and code blocks with syntax highlighting, automatically save and search chat history, export and import prompts and conversations, toggle between light and dark mode, and improve accuracy with up-to-date information from the internet.Some common use cases for ChatHub include multi-chatbot research, language model comparison, and custom chatbot prompt creation. To use ChatHub, simply add the browser extension to a Chromium-based browser like Chrome, Edge, or Brave. After installation, users can activate ChatHub with a keyboard shortcut and start chatting with multiple chatbots simultaneously. Conversations are automatically saved and searchable in the chat history, and users can also customize prompts and learn from community prompts using the prompt library feature. Additionally, ChatHub supports rich text formatting, dark mode, and the ability to import/export prompts and conversations.