# Analytics: Cost

## Overview

The Cost tab (listed as **Costs** in the left rail) shows what the AI agents cost to run, how fast they respond, and the individual model calls behind each request. It has three inner tabs: **Spend**, **Usage & latency**, and **Traces**. See also [OS Analytics: Costs](../../os/analytics/costs.md).

## Target Audience

**Administrator** | **Analytics viewers**

Users without permission to see LLM usage get "You do not have permission to view LLM usage analytics."

## Features

#### Spend
**Weekly Costs**, **Monthly Costs**, and **Total Costs**; charts of **Cost per Day**, **Cost by Provider**, and **Cost by LLM**; and a **Cost per User** table (**User Email**, **Total Cost**, **Sessions**, **Last Active**) with a **Traces →** link for each user.

#### Usage & latency
**LLM spend**, **Tokens**, **LLM calls**, and **Latency p95**, with charts of **Spend over time**, **Spend by model**, and **Latency by model**.

#### Traces
Every request, with **Started**, **Service**, **User**, **Latency**, and **Cost**, filterable by service and user. Click one to see its steps (**Observations**) and **Open transcript** to read the conversation.

## How to Use

#### Step 1: Check spend
Open **Spend** to see this week's and this month's costs.

#### Step 2: Find what drives it
Use **Cost by LLM** and **Cost per User** to find the expensive models and heaviest users.

#### Step 3: Investigate slow or costly requests
Open **Traces**, filter to a user, and click a request.