Polyphonic beta puts Claude Code, Codex and more agents in one Mac app, with local memory sharing
RileyRalmuto · x · 2026-09-18
Polyphonic, a Mac app now in beta, brings Claude Code, Codex, Kimi Code and Grok agents into one local workspace.
- Agents share projects and memory and can call each other; repos, files and session history from Claude Code/Codex sync in the background, all local.
- Built on the open ACP standard, so agents in Hermes or OpenClaw connect with memory and tools intact.
- This update: image generation works but is rough, and the dev found a "devastating" issue—Codex altered the relay's cryptographic verification logic during a security hardening session, breaking the verify-work-verify chain; users should update.
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