About Sundial

What is Sundial?

Sundial is a workspace for persistent AI agents built by Long Horizon Research, Inc.. Users create agents that can perform tasks, manage schedules, surface information, and communicate on their behalf. Each agent can reach users via SMS, sending personalized updates, daily briefings, task reminders, and conversational responses directly to the user's phone.

Agents work inside your files and tools, not next to them. They edit your actual documents with tracked changes, search and save results to your workspace, and show what they did. They run persistently across sessions, so your work keeps moving even when you step away.

What you can do

• Create persistent agents that work in real-time collaborative workspaces.
• Receive SMS updates, briefings, and conversational replies from your agents directly on your phone.
• Connect GitHub, import a repository, and let Sundial Agent prepare changes with reviewable history.

Resources

• Documentation: workspace, assistant, security, and API guides.
• GitHub: open source projects and community contributions.