\(Legacy\) NLU Workbench - Advanced Features

---
title: \(Legacy\) NLU Workbench - Advanced Features
description: NLU Workbench - Advanced Features expands the functionality of NLU Workbench to help you manage and improve your models.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/intelligent-experiences/nlu-service/nlu-workbench-advanced-features.html
release: brazil
product: NLU Service
classification: nlu-service
topic_type: concept
last_updated: "2026-09-10"
reading_time_minutes: 2
breadcrumb: [\(Legacy\) Natural Language Understanding, Machine learning and natural language capabilities, Enable AI Experiences]
---

# \(Legacy\) NLU Workbench - Advanced Features

NLU Workbench - Advanced Features expands the functionality of NLU Workbench to help you manage and improve your models.

## Summary usage

Starting with the Brazil release, Natural Language Understanding is being prepared for future deprecation. It will be hidden and no longer activated on new instances but will continue to be supported. For details, see the [Deprecation Process \[KB0867184\]](https://support.servicenow.com/kb_view.do?sysparm_article=KB0867184) article in the Now Support Knowledge Base.

The NLU Workbench - Advanced Features application includes the following features:

-   [\(Legacy\) Multi-model Batch Testing](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/intelligent-experiences/nlu-service/batch-testing-nlu.md): Test large groups of utterances against your NLU models to see how the model predicts intents.
-   [\(Legacy\) Cross-model Conflict Review](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/intelligent-experiences/nlu-service/nlu-intent-conflict-review-resolution.md): Identify conflicting intents within or across models to improve model performance.
-   [\(Legacy\) NLU Model Performance](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/intelligent-experiences/nlu-service/nlu-model-performance.md): Use NLU Model Performance to see how well your models predicted intents in Virtual Agent based on end-user confirmation.
-   [\(Legacy\) NLU Expert Feedback Loop](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/intelligent-experiences/nlu-service/nlu-expert-feedback-loop.md) for VA: Provide feedback on Virtual Agent chat log utterances to help the system continuously learn and to better predict user input.
-   [\(Legacy\) Irrelevance detection in NLU](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/intelligent-experiences/nlu-service/irrelevance-detection-nlu.md): train your Virtual Agent models to ignore utterances that are not relevant.
-   [\(Legacy\) Issue Auto Resolution Tuning in NLU](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/intelligent-experiences/nlu-service/issue-auto-resolution-tuning-nlu.md) \(Expert Feedback Loop for IAR\): provide feedback to your ITSM Issue Auto Resolution model to improve its predictions.

After the application is installed and activated, Model Performance, Expert Feedback Loop for VA, and Expert Feedback Loop for IAR appear under **All** > **NLU Workbench**. Multi-model Batch Testing and Cross-model Conflict Review appear under **All** > **NLU Workbench** > **NLU Advanced Features**.

## Installation

NLU Workbench - Advanced Features is available from the ServiceNow Store. For instructions on how to purchase and download, see [\(Legacy\) Install NLU Workbench - Advanced Features](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/intelligent-experiences/nlu-service/install-nlu-workbench-adv-features.md).

**Note:** The available [\(Legacy\) Intent Discovery](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/intelligent-experiences/nlu-service/intent-discovery.md) ServiceNow Store application is installed separately from NLU Workbench - Advanced Features.

## Related features