msgblast: Open-Source Mac App Broadcasts One Prompt to All Your AI Agents
msg · x · 2026-10-17
Developer msg released msgblast, an open-source Mac app that lets you send the same prompt to multiple AI agents at once and compare answers side by side.
- Supports web assistants (ChatGPT, Claude, Grok, etc.), agents via Messages, and local CLIs like Codex CLI, Claude Code, and Ollama
- Core workflow: same prompt, different takes — see where agents agree or diverge, then pick which conversation to continue
- Free to download, fully open source
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