---
title: "up"
description: "Starts GenLayer's simulator"
source: https://docs.genlayer.com/api-references/genlayer-cli/environment/up
last_updated: 2026-03-27
---

# up

Starts GenLayer's simulator

### Usage

`$ genlayer up [options]`

### Options

| Short | Long | Description | Required | Default |
| --- | --- | --- | :---: | --- |
|  | --reset-validators | Remove all current validators and create new random ones | No | `false` |
|  | --numValidators <numValidators> | Number of validators | No | `5` |
|  | --headless | Headless mode | No | `false` |
|  | --reset-db | Reset Database | No | `false` |
|  | --ollama | Enable Ollama container | No | `false` |
| -h | --help | display help for command | No |  |