AICenter

The 100% local extension to compare GPT, Claude, Gemini, Mistral and more side-by-side. No account needed. Bring Your Own Keys.

Stop switching tabs. AICenter is the all-in-one AI chat extension that runs 100% locally on your computer. Chat with up to 4 different AI models (like OpenAI's GPT-5, Anthropic's Claude Sonnet 4.5, Google's Gemini, and Mistral) in a single, clean interface. The ultimate tool for comparing AI responses side-by-side. Your Data, Your Keys: There is no server, no tracking, and no account required. All your API keys and chat history are stored securely and exclusively on your local device. Features: Multi-AI Comparison: Send one prompt to 4 models at once and watch the responses appear in real-time. 100% Local & Private: Your API keys and conversations never leave your computer. Bring Your Own Key (BYOK): Plug in your own API keys for full control over your usage and costs. Chat History: Save and reload your past conversations locally. Prompt Library: Create and save your favorite prompts to reuse them instantly.