AZ492962 - Retirement: Language Understanding (LUIS) retirement extended to October 31, 2025

Azure Updates

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Published

May 30, 2025

Timeline

  • October 2025
    Retirement

Product

Azure AI Services
Language Understanding (LUIS)

Tag

Retirements

Category

AI + machine learning
Mobile

Description

In September 2022, we announced that Language Understanding (LUIS) would be retired on October 1, 2025. Based on feedback from you, we are extending the retirement date to October 31, 2025, to give you more time to plan for your migration. 

 

On October 31, 2025, Language Understanding (LUIS) will be retired. Before that date, please migrate to conversational language understanding, a capability of Azure AI Service for Language. Conversational language understanding provides many of the capabilities of LUIS, plus enhancements such as:  

  • Enhanced AI quality using state-of-the-art machine learning models  
  • Multilingual capabilities that allow you to train in one language and predict in others  
  • Built-in routing between conversational language understanding and custom question answering projects using orchestration workflow  
  • Access to a suite of features available on Azure AI Service for Language  

 

Required Action 

Migrate your LUIS projects to CLU  

 

More Information 

You can reach us directly at LUIS Retirement. If you have a support plan and you need technical help, please create a support request.