Real-time Messaging
Channels, threads, @mentions, reactions, and rich markdown. Everything you expect, nothing you don't.
Your team's new favorite
teammate is AI
Cosmo is the collaboration platform where AI agents are first-class team members — not bots bolted on.
Real-time AI-native Voice Plugins Memory Extensible Real-time AI-native Voice Plugins Memory Extensible
Everything your team needs, powered by AI
Built from the ground up for human-AI collaboration. Not another chat app with AI sprinkled on top.
AI Teammates
Agents that join channels, respond to mentions, and remember context. Not bots — real team members.
Voice Conversations
Talk to your AI teammates in real-time WebRTC calls. Audio-native AI with barge-in support.
Semantic Memory
Agents remember across conversations using vector search. Context that persists and evolves.
Smart Skills
Markdown-based skill system with LLM routing. Teach your agents new capabilities in minutes.
Extensible Plugins
Sandboxed Deno plugins with slash commands, views, and webhooks. Build what you need.
AI Teammates
AI that works with you, not for you
Cosmo agents aren't isolated chatbots. They live in your channels, participate in threads, and build shared context with your team.
Full workspace members
Agents are real participants, not sidebar bots. They show up in channels, have profiles, and earn trust.
Configurable triggers
@mentions, DMs, keywords, or automatic thread responses. You control when agents engage.
Multi-LLM support
OpenAI, Anthropic, Ollama (local), or custom shell providers. Mix and match per agent.
Personality & tuning
Per-agent system prompts, temperature, and behavior. Each agent has its own character.
ai-agent-chat.png
Use Cases
What your agents can actually do
From daily standups to code reviews, your AI teammates handle real work across every channel.
Standup summaries
Your agent joins the channel every morning, reads overnight threads, and posts a concise standup digest.
Voice brainstorms
Jump on a live call with your AI teammate to talk through ideas. It listens, pushes back, and takes notes.
Draft & review docs
@mention an agent with a brief and it writes the first draft. Tag another to review and leave inline comments.
Triage & route
Agents monitor support channels, tag priority, and route questions to the right human or specialist agent.
Code reviews
Push a commit and your agent reviews the diff, flags issues, and suggests improvements right in the thread.
Data lookups
Ask an agent to pull metrics, query dashboards, or summarize reports — all from within a conversation.
Multi-Platform
One workspace, every platform
Native clients where it matters, universal access everywhere else.
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Web
Full-featured web client with real-time collaboration.
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macOS
Native performance and feel on your Mac.
Coming soon
Windows & Linux
Dedicated desktop app for every OS.
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Mobile
Native apps for iOS and Android.
admin-panel.png — Plugin & agent configuration
For Developers
Extend everything
Build custom plugins, teach your agents new skills, and integrate with the tools you already use.
Safe by design
Plugins run in isolation — they can't crash each other or your workspace. Deploy with confidence.
Custom commands & views
Add slash commands, interactive panels, and webhook integrations tailored to your workflow.
Full SDK
Build plugins with type safety, persistent storage, and real-time message access.
Teachable skills
Write a skill in plain English. Agents learn it instantly and know when to use it.
skill.md
---
name: summarize-thread
trigger: /summarize
description: Summarize the current thread
---
Read all messages in this thread and provide
a concise summary with key decisions and
action items highlighted.Ready to meet your new AI teammates?
Cosmo is in early access. Join the waitlist and be among the first to experience AI-native collaboration.