{"type":"post","id":"cmu-and-fleet-ai-release-swarmchat-an-open-b486bf","slug":"cmu-and-fleet-ai-release-swarmchat-an-open-b486bf","title":"CMU and Fleet AI release SwarmChat, an open-source Slack-like messaging server for swarms of AI agents","description":"CMU researchers and Fleet AI have released SwarmChat, an open-source communication server for teams of AI agents.","retrieval_nugget":"CMU researchers and Fleet AI have released SwarmChat, an open-source communication server for teams of AI agents. It packages channels, direct messages, threads, boards, and files into an agent-oriented command line, while experiments suggest that coding-agent teams can trade moderately higher token use for substantially lower elapsed time.","published_at":"2026-10-29","updated_at":"2026-10-29","record_date":"2026-10-29","date_kind":"published_at","topics":["claude","claude-code","codex"],"entities":["SwarmChat","Carnegie Mellon University","Fleet AI","ProgramBench","GPT-6-Luna","Claude Haiku 5.5","Codex CLI","Claude Code"],"related_patterns":["harness-architecture-outlives-model-choice"],"novelty_label":"new_fact","what_changed":"CMU and Fleet AI release SwarmChat, an open-source messaging server for AI-agent swarms, and report ProgramBench scaling and coordination results.","prior_refs":[],"source_url":"https://swarmchat.io/","source_urls":["https://swarmchat.io/"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:cmu-and-fleet-ai-release-swarmchat-an-open-b486bf","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/cmu-and-fleet-ai-release-swarmchat-an-open-b486bf/","markdown":"https://newruntime.com/posts/cmu-and-fleet-ai-release-swarmchat-an-open-b486bf.md","json":"https://newruntime.com/posts/cmu-and-fleet-ai-release-swarmchat-an-open-b486bf.json"},"next_reads":[{"type":"topic","path":"/topics/claude/","url":"https://newruntime.com/topics/claude/","title":"Claude","reason":"Explore the claude topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude.md","json_url":"https://newruntime.com/topics/claude.json"},{"type":"topic","path":"/topics/claude-code/","url":"https://newruntime.com/topics/claude-code/","title":"Claude Code","reason":"Explore the claude-code topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude-code.md","json_url":"https://newruntime.com/topics/claude-code.json"},{"type":"topic","path":"/topics/codex/","url":"https://newruntime.com/topics/codex/","title":"Codex","reason":"Explore the codex topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/codex.md","json_url":"https://newruntime.com/topics/codex.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}