msgblast: open-source Mac app fires one prompt at multiple AI agents side by side
msg · x · 2026-10-14
Developer msg launched msgblast, an open-source Mac app that sends a single prompt to multiple AI agents simultaneously and shows their answers side by side, making it easy to spot where agents agree or diverge. It supports web apps (ChatGPT, Claude, Grok, Muse, etc.), any agent you chat with in Messages, and local CLIs like Codex CLI, Claude Code, and Ollama. The app is free to download and fully open source.
Related event: Open-Source Mac App msgblast Blasts One Prompt to Multiple AI Agents(2 posts)→
More from coding & agent
- Rust 3D physics engine built with Gemini Argon: 20k bodies in 90KB — LinusEkenstam · 2026-10-14
- Spawn runs 8 people on $7k/day of agents, out-pacing Anthropic per capita — mattshumer_ · 2026-10-14
- Antigravity team used Gemini 4 Argon multi-agent workflows to translate into 17 languages in two days — gaganghotra_ · 2026-10-14
- Dev uses Claude to auto-generate daily videos from his Google Drive — sierracatalina · 2026-10-14
- EmbeddingGemma2 on CPU matches OpenAI's embedding-3-large in 96-config retrieval benchmark — tomaarsen · 2026-10-14
- PE firm's AI lead: coding agents could unlock $15M a year at one portfolio company — alex_verem · 2026-10-14