---
title: Build your first cohort
description: "Group users by what they did or who they are, then reuse that list anywhere in Amplitude."
product: analytics
token_estimate: 716
---
# Find the right group of people

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Ever want to find just your happiest customers, or the ones who left and never came back? A Cohort is a saved list of people who all did the same thing, or have the same trait. Build it once, reuse it anywhere in Amplitude.

- 5 minutes
- Beginner
- For PMs & analysts

**Video (1:44):** Find the right group of people — wistia id `8o2x8zu0ml` — [poster](/docs/images/quick-guides/cohort-video-still.jpg)

↓ Scroll down to the step-by-step guide

## Why cohorts matter

- See your users in groups instead of one big crowd, so patterns are actually easy to spot.
- Build a group once, then reuse it anywhere: charts, targeting, guides, even Experiments.
- Answer real questions, like "What do my best customers do that everyone else doesn't?"

## Three simple ways to use your first cohort

- **Find your power users:** People who did an action a lot, like logging in every day this month.
- **Find people who might be slipping away:** People who haven't done a key action in a while.
- **Find your newest users:** People who signed up in the last 7 days.

## Build your first cohort

Follow these five steps. You can finish without help.

1. **Open Cohorts and click New Cohort**

   Open _Cohorts_ from the left-hand menu and click _New Cohort_.

2. **Choose who belongs in the group**

   Pick what makes someone belong, like _did this thing_ or _has this trait_.

3. **Name your cohort**

   Give the cohort a memorable name, like "Logged in this week".

4. **Save it**

   Click _Save_.

5. **Use it on a chart**

   Use your new cohort as a filter on any chart to see just that group.

## Use Global Agent to build your cohort

Global Agent can build your cohort for you. Copy this prompt, then replace each bracketed placeholder with the details of the audience you want.

```text
Include [users / groups] who [performed / did not perform] [event name] [number of times or frequency] within [time frame].

Additional filters you can use: [user, group, account, platform, geography, plan, or other property conditions]. Exclude [users or conditions to exclude]. Use a [rolling / fixed] time window of [time period].

The purpose of this cohort is [what I want to understand or do with this audience]. Before creating it, summarize the final cohort definition, identify any missing or ambiguous details, and ask me to confirm if needed. Once confirmed, create and save the cohort.
```

[Go build your first cohort](https://app.amplitude.com/audiences/amplitude/cohorts)

### [Create User Groups with Behavioral Cohorts](https://academy.amplitude.com/create-user-groups-with-behavioral-cohorts)

Want more learning on this topic? Visit the full Academy course.