Chorus

Chorus is a lightweight desktop application designed for macOS that aggregates multiple cutting-edge AI models. In a single interface, users can chat with models such as GPT-4, Claude, Gemini, compare and synthesize responses, and it supports file parsing and local data storage to enhance multi-model collaboration and content processing efficiency.

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Chorus AI desktop appMulti-model AI aggregation toolMac AI assistantLocalized AI chat softwareGPT-4 Claude Gemini integrationAI response comparison toolPDF URL content parsing

Features of Chorus

Integrates multiple AI models—such as GPT-4, Claude, Gemini—into a single interface, with support for simultaneous conversations

Offers real-time side-by-side comparison of multi-model responses and can synthesize a consensus answer

Supports uploading PDF documents and parsing webpage URLs to enable file-based conversations

Built-in full-text search to easily locate locally stored chat history

Allows users to connect to models using their own API keys, with support for managing custom prompts

Built on the Tauri framework with a Rust backend, prioritizing fast responsiveness and performance

Chat history and data are stored locally in SQLite by default, enabling offline access

Includes keyboard shortcuts and an always-available 'ambient chat' launcher for quick access

Use Cases of Chorus

When researchers or developers need to quickly compare how different AI models answer the same technical question

When content creators want AI to help summarize or analyze uploaded PDF reports or web articles

Users want to manage conversations with multiple AI models in a single app, avoiding frequent platform switches

When you need to store and full-text search historical AI conversations for knowledge management

Developers or power users who want to control model usage costs more flexibly via their own API keys

While coding or writing documents, quickly launching a lightweight AI chat window for quick assistance

FAQ about Chorus

QWhat is Chorus? What is it mainly used for?

Chorus is a macOS desktop application that aggregates multiple AI models (such as GPT-4, Claude, Gemini) into a single interface. Users can query multiple models simultaneously, compare their answers, and process local file content.

QWhich AI models does Chorus support?

The app supports mainstream cloud models including OpenAI's GPT-4/4o, Anthropic's Claude, Google’s Gemini. It also supports running local open-source models via tools like Ollama.

QIs Chorus free to use?

Chorus offers a free version. Its business model is subscription-based, and users can also use their own API keys to access the respective model services.

QHow does Chorus handle user privacy and data?

According to its stated policy, chat history is stored locally on the user's computer in an SQLite database by default; the app itself does not upload chats to servers. The data collected is mainly used for account management and product analytics.

QIs there a Windows version of Chorus?

Currently, Chorus primarily supports macOS. According to official information, a Windows version is in development, and users can join a waiting list.

QWhat types of files can Chorus handle?

The app supports uploading and parsing PDF documents, and it also accepts web page URLs to extract text so users can chat with AI based on the file contents.

QHow does Chorus's response comparison feature work?

After you submit a question, you can send it to multiple connected AI models at once. The app displays all model responses side by side for easy visual comparison, and you can also synthesize multiple answers into a single, comprehensive response.

QIs Chorus open source?

Yes, its code is open-sourced on GitHub.

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