# Credits

> Credits measure AI model usage in TulipFarm. The whole workspace shares one balance, and each new workspace starts with free credits.

Source: https://docs.tulipfarm.ai/concepts/credits/

Credits are the units that measure AI model usage in TulipFarm. Everyone in a workspace shares one credit balance.

## How credits work

- Each new workspace starts with 1,000 free credits, worth $50. The **Usage** page shows them as **Welcome credits**.
- Only AI model usage costs credits. Tool calls and other computing do not.
- Credits are a unit of usage. You cannot buy credits in TulipFarm. To get more, [contact support](https://docs.tulipfarm.ai/billing/get-more-credits/).

Each model call reserves credits before it starts. When the call ends, TulipFarm charges the real cost and releases the rest. If TulipFarm cannot confirm the usage of a call, the credits stay reserved.

A call can need more credits than your balance has left. A large model reserves more credits before each call.

## What uses credits

- Replies in chat
- Agent tasks
- [Knowledge](https://docs.tulipfarm.ai/concepts/files-and-knowledge/) search
- **Ask AI** search in tables
- Replies from [Bud](https://docs.tulipfarm.ai/getting-started/meet-bud/)

Each agent task has its own credit limit. The default limit is 100 credits per task.

## Where to see your balance

Open **Settings**, then **Usage**. The page shows the credits left, the credits used, and the credits reserved.

- Admins see the usage of the whole workspace.
- Members see the usage of their own chats and of the agents they can open.

> **Note:** When the workspace has no credits left, new chats, replies, and agent model steps stop. Your existing messages stay readable.

## Related

- [How credits are used](https://docs.tulipfarm.ai/billing/)
- [Get more credits](https://docs.tulipfarm.ai/billing/get-more-credits/)
- [Usage](https://docs.tulipfarm.ai/admin/usage/)
- [Models](https://docs.tulipfarm.ai/admin/models/)