# Properties & filters

The typed attributes carried on events — use them to filter metrics and break them into dimensions.

**Path:** Analytics → Event Explorer

Properties are the attributes carried on each event. Use them two ways: to **filter** a metric (only events matching a condition) and to **break down** a metric into dimensions (a series per value). Each property has a **type** (STRING, NUMBER, TIMESTAMP, and so on).

## Categories

| Category | Count | Examples |
| :--- | :--- | :--- |
| **Conversation Actions** | 19 | Action key; Model & Cost (AI provider LLM model name, LLM provider, Estimated cost); Tokens (Input, Output, Cached tokens) |
| **Web & Session** | 21 | Session, page, and referral attributes |
| **User** | 8 | User Type, User Role, User Email, User Name, Identify id, First Visit Date, Last Seen Date, User Created Date |
| **Subscription** | 6 | Account and plan attributes |
| **Event Property** | 8 | Environment, Event Name, Event origin, Product id, Timestamp, Page title, Referrer, Event recording id |

The picker also shows a **Recommended for `<event>`** shortcut with the most relevant properties (for example, Action key for Action Called).

## Example properties

| Property | Type | Meaning |
| :--- | :--- | :--- |
| **AI provider LLM model name** | STRING | The specific model used (e.g. `gemini-pro`, `gpt-4`, `claude-3-opus`). |
| **User Type** | STRING | Segments users: Anonymous (unauthenticated), Lead, or User (normal user). |
| **Timestamp** | TIMESTAMP | When the event occurred. |

## Use them

- **Filter on a metric** to scope a single metric, or add a **report-level filter** that applies to every metric.
- **Break down** by a property to split a metric into a series per value (for example, break Action Called down by Action key).
- **Numeric properties** (tokens, cost, latency) can also be summed or averaged — see [Cost & tokens](/user-guides/analytics/cost-tokens/).

## Related

- [Events & metrics](/user-guides/analytics/events-metrics/): the events these properties belong to.
- [Segments](/user-guides/analytics/segments/): turn a property condition into a reusable user group.