Chorus

Chorus is for people who use more than one AI assistant and want to compare answers without switching between separate apps. Its Mac desktop interface lets you send a prompt to multiple models—including OpenAI, Anthropic, Gemini, OpenRouter, and local open-source models—and view their responses together. You can also choose a single model for follow-up questions. Use Chorus to compare ideas, check answers from different models, or get help with tasks such as research and coding. It supports PDF, image, and document uploads, can extract text from URLs, and includes searchable chat history and projects that share context between related chats. Ambient chats let you start a conversation from elsewhere on your Mac with screen context, while MCP support connects models to tools such as web search, the terminal, and GitHub. You can use your own API keys or Chorus’s proxy.

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