[Yandex Cloud documentation](../../index.md) > [Yandex DataLens](../index.md) > DataLens neuroanalyst

# Neuroanalyst in Yandex DataLens

Yandex DataLens Neuroanalyst is a group of AI assistants that help you with project analysis, suggest improvements and edits, and streamline creating and editing visualizations.

* [Neuroanalyst for calculated fields](calculations/formulas-helper.md): Helps you to create calculated fields.
* [Neuroanalyst on your dashboard](../dashboard/insights.md): Neuroanalytics for the entire dashboard and individual charts. [Neuroanalyst 2.0](../dashboard/insights.md#neuroanalyst-2) is now available, which is a full-value DataLens AI agent which, to answer a question, can pick a similar chart or build a new one based directly on the dataset.
* [Neuroanalyst in Editor](../charts/editor/code-helper.md): Helps you to write code and search for answers to your questions.
* [Neuroanalyst in report](../reports/insights.md): Neuroanalytics in your report.



## Data security and processing {#security}


* Neuroanalyst is powered by the cloud service called [Yandex Cloud AI Studio](https://aistudio.yandex.ru/docs/en/).



* Your data and queries stay within the Yandex Cloud infrastructure.
* Your data and queries are not logged, nor used for model tuning.
* The admin can [disable generation of insights for your users](#prohibit) at the dashboard or report level.

See also [Neuroanalyst limits](limits.md#datalens-ai-limits).



## Ban on Neuroanalyst {#prohibit}

DataLens users are able to use Neuroanalyst by default. However, the user with the `datalens.admin` role may disable this option at the DataLens instance level or for individual dashboards or reports:

{% list tabs %}


- DataLens instance


  1. In the left-hand panel, select ![sliders](../../_assets/console-icons/sliders.svg) **Service settings**.
  1. Select the **Security** tab.
  1. Disable **Neuroanalyst** (on by default). As soon as you do it, the AI assistants will disappear from the DataLens interface for the instance users.




- Dashboard

  1. In the left-hand panel, click ![image](../../_assets/console-icons/layout-cells-large.svg) **Dashboards** and select the dashboard you need.
  1. In the top-right corner, click **Edit**.
  1. At the top of the screen, click ![image](../../_assets/console-icons/gear.svg). The settings window will open on the right.
  1. In the settings window, disable **Neuroanalyst** (on by default).
  1. In the top-right corner, click **Save**.
  
  After that, the AI assistant will become unavailable for this dashboard.

- Report

  1. In the left-hand panel, click ![image](../../_assets/console-icons/display-pulse.svg) **Reports** and select the report.
  1. At the top right, click ![icon](../../_assets/console-icons/gear.svg) **Report settings**. The settings window will open on the right.
  
  1. In the **Other settings** section, disable **Neuroanalyst** (on by default).
  
  1. In the top-right corner, click **Save**.
  
  After that, the AI assistant will become unavailable for this report.

{% endlist %}



## Setting up a custom prompt {#user-promt}

In DataLens, you can set up a custom prompt for AI. To do this, follow these steps:

1. Click ![image](../../_assets/console-icons/gear.svg) **Settings** in the left part of the navigation panel to open the settings.
1. Go to the **AI settings** tab.
   
   {% cut "AI settings" %}

   ![image](../../_assets/datalens/release-notes/ai-setting.png)

   {% endcut %}

1. Click **Edit**.
1. Enter a prompt in the text field and click **Save**.

With each request to the AI, the custom prompt will be added to the DataLens system prompt.