---
title: "Stop, start, and restart an endpoint"
description: "Stop an hourly Model Endpoint to end its compute billing, start it again, restart it or one worker, and see which states allow each action."
content_type: "how-to"
product: "model-endpoints"
platform: "TIR"
url: "/tir/model-endpoints/how-to/stop-start-and-restart-an-endpoint/"
topic: ["operate"]
---

# Stop, start, and restart an endpoint

Stop an endpoint during quiet periods, start it when you need it, or restart it to make it pull its model or code again. These actions are on the endpoint's row in **Model Endpoints** and on its details page.

## Before you begin

- Permission to update model endpoints in the project. A Member needs a policy that grants update permission for the Inference service. The portal shows only the actions your permissions allow.
- An endpoint in the state each action needs. **Stop Service** needs an hourly endpoint in any state other than **Stopped**. **Start Service** needs a **Stopped** endpoint. **Restart Service** needs a **Running** endpoint.

## Stop an endpoint

1. Select **Stop Service**. The dialog asks "Are you sure you want to stop inference service `<name>`?"
2. Select **Stop**.

The endpoint goes to **Terminating** and then **Stopped** when every worker is gone. An endpoint already at zero workers goes straight to **Stopped**. Stopping removes the workers and ends compute billing. The endpoint, its address, and its settings stay, and **Start Service** brings it back.

## Start an endpoint

1. Select **Start Service**. The dialog asks "Are you sure you want to start inference service `<name>`?"
2. Select **Start**.

The endpoint comes back with the worker counts it was stopped with. It is **Waiting** until its workers appear, or **Idle** when its minimum is 0 on a scale-to-zero policy. A start checks free capacity and credit again, and a refusal reads "SKU Inventory temporarily unavailable. Please try again." or "Insufficient Credits!". Starting begins a new billed period.

## Restart an endpoint

1. Wait until the endpoint is **Running**, then select **Restart Service** under **Actions**.
2. Confirm the dialog "Are you sure you want to restart inference service `<name>`?"

TIR confirms the restart, and the state updates a few seconds later. A restart is the way to load new files that you uploaded to the endpoint's Model Repository. The workflow of a Custom Container endpoint linked to GitHub restarts it when someone merges a change. See [Deploy a custom container](/tir/model-endpoints/how-to/deploy-a-custom-container/).

## Restart one worker

On the **Workers** tab, select **Restart** on a worker's row and confirm. TIR replaces that one worker with a new one, while the other workers keep serving. Use this when one worker misbehaves and the rest are fine.

## Check the state

The state in the list and on the details page shows where the endpoint is. Only hourly endpoints have **Stop Service**; the [Model Endpoints FAQ](/tir/model-endpoints/faq/#why-can-i-not-stop-my-committed-endpoint) explains why. If an endpoint stays in **Terminating**, or the action is refused, see [Troubleshooting Model Endpoints](/tir/model-endpoints/troubleshooting/model-endpoints/).