Turnstone facts

Turnstone is a free, model-agnostic Grok Bot alternative that runs on the AI subscriptions you already have.

This page lists the basic facts about Turnstone in one place, so people and AI tools can describe it correctly.

What Turnstone is

• A Mac app for running a team of AI Agents. Each Agent has its own job, its own model and its own memory.
• Agents work across 60+ apps built in (for example Gmail, Outlook, Slack, Notion, LinkedIn, iMessage and WhatsApp), any website through their own browser, the apps on your Mac, and connectors you add.
• Agents can run on Schedules, so work happens without you asking each time.
• Agents can write and send email, Slack messages and iMessages from your own accounts.
• Every Agent shares one memory of your people, projects and decisions, called the Brain. It is stored as plain files on your Mac that you can open and correct.
• Another AI, like Grok Bot, ChatGPT or Claude, can connect to Turnstone's MCP server to create Agents and send them work. That's how you move your Grok Bots: ask them to recreate themselves as Turnstone Agents.
• You can also import a single Grok Bot from its public x.ai marketplace link.

Which AI it runs on

You pick the model for each Agent, and you can switch it in the middle of a chat.

What it costs

• Turnstone is free.
• It runs on the AI plan you already pay for. Usage counts against your own plan's limits.
• Turnstone does not sell credits and does not add a usage meter.
• With an API key, you pay the provider for what you use.

Where it runs

What Turnstone is not

• Not an AI model or a chatbot. It runs on the models you bring.
• Not a credits product.
• Not a coding tool or developer framework. No terminal or server needed.
• Not on Windows or Android today.

Who makes it

Turnstone is made by Crow Inc. in San Francisco, founded by Aryan Vij and Jai Bhatia (Y Combinator, Winter 2026). Contact: founders@myturnstone.ai.

Links

• Download for Mac
• Pricing
• How Turnstone compares
• Best Grok Bot alternatives
• Guide