Cuey is a browser extension (Chrome) by Llama Valley Inc that allows you to send a prompt simultaneously to multiple AI models such as ChatGPT, Claude, Gemini, Grok, and DeepSeek and display the responses side-by-side in a sidebar for comparison. The tool runs directly within the existing chat interfaces of supported providers without requiring a separate window, and additionally offers a cross-device prompt library and a memory feature that carries context across different AI models. It comes in a free basic version as well as paid plans with expanded model access and higher usage limits.

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