One chat. Many voices.
Polyphon is an Electron desktop application for orchestrating conversations between multiple AI agents simultaneously. Agents can respond to the user and to each other — like a conductor leading an ensemble.
- Multi-agent sessions — add any number of voices to a conversation and watch them reason together
- Compositions — save and reuse named multi-voice configurations across sessions
- Mixed providers — combine API-key voices (Anthropic, OpenAI, Gemini), CLI voices (
claude,codex), and custom OpenAI-compatible endpoints (Ollama, LM Studio, vLLM) in the same session - Tones — per-voice tone overrides (professional, collaborative, concise, exploratory, teaching) or custom tones
- Conductor profile — set your name, pronouns, and context so voices address you correctly
- @mention routing — direct a message to a specific voice or broadcast to all
- Local-first — no cloud dependency required; your data stays on your machine
- No telemetry — never phones home without explicit opt-in
| Provider | Type | Requires |
|---|---|---|
| Anthropic (Claude) | API | ANTHROPIC_API_KEY |
| OpenAI | API | OPENAI_API_KEY |
| Google Gemini | API | GEMINI_API_KEY |
Claude Code (claude) |
CLI | claude CLI installed |
Codex (codex) |
CLI | codex CLI installed |
| Custom (Ollama, LM Studio, vLLM, …) | OpenAI-compatible | Endpoint URL |
API keys are read from your shell environment — set them in .zshrc / .bash_profile and they are available even when launching from the Dock.
Pre-built installers for macOS (Apple Silicon) are available on the Releases page.
Prerequisites: Node.js 22+, npm
git clone https://github.com/polyphon-ai/polyphon.git
cd polyphon
make install
make runmake install # install dependencies + git hooks
make run # start in development mode (hot reload)
make build # package the Electron app
make dist # create distributable installersmake test # unit + integration + e2e
make test-unit # Vitest unit tests only
make test-integration # Vitest integration tests only
make test-e2e # Playwright e2e with mocked voices (CI-safe, no credentials needed)
make test-e2e-live # e2e against real providers (opt-in, never CI)
make test-openai-compatible-live # e2e against real openai compatible providers (ollama)
make test-watch # Vitest in watch modemake lint # TypeScript type-check (no emit)Chrome DevTools are closed by default in make run. To open them at launch:
POLYPHON_DEVTOOLS=1 make run- Website: polyphon.ai
- X / Twitter: @PolyphonAI
- GitHub Org: github.com/polyphon-ai
- GitHub: polyphon-ai/polyphon
- Reddit: u/PolyphonAI
- Email: hello@polyphon.ai
Issues and bug reports are welcome. This project is not currently accepting pull requests.
Apache 2.0 © 2026 Corey Daley
| Layer | Technology |
|---|---|
| Shell | Electron 41 |
| UI | React 19 + TypeScript + Tailwind CSS v4 |
| State | Zustand 5 |
| Database | better-sqlite3 v12 + SQLCipher 4.14.0 (AES-256 whole-database encryption) |
| Build | Electron Forge + Vite 7 |
| Testing | Vitest 4 + Playwright |