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Azure Cognitive Services

Add cognitive capabilities to apps with APIs and AI services.

What is Azure Cognitive Services?

Cognitive Services brings AI within reach of every developer and data scientist. With leading models, a variety of use cases can be unlocked. All it takes is an API call to embed the ability to see, hear, speak, search, understand, and accelerate advanced decision-making into your apps. Enable developers and data scientists of all skill levels to easily add AI capabilities to their apps.

See how to deploy AI solutions for various use cases using the programming languages you already know.

Explore the benefits of Cognitive Services

Use customizable, pretrained models built with breakthrough AI research.

Deploy Cognitive Services anywhere from the cloud to the edge with containers.

Empower responsible use with industry-leading tools and guidelines.

Azure Cognitive Services

Improve customer experiences with Cognitive Service for Speech

Speech to text

Transcribe audible speech into readable, searchable text.

Text to speech

Convert text to lifelike speech for more natural interfaces.

Speech translation

Integrate real-time speech translation into your apps.

Speaker recognition

Identify and verify the people speaking based on audio.

Understand conversations and unstructured text with Cognitive Service for Language

Entity recognition

Identify commonly-used and domain-specific terms.

Sentiment analysis

Automatically detect sentiments and opinions from text.

Question Answering

Distill information into easy-to-navigate questions and answers.

Conversational language understanding

Enable your apps to interact with users through natural language.


Translate more than 100 languages and dialects.

Identify and analyze content within images and videos

Azure Cognitive Services for Vision

Identify and analyze content within images and videos.

Custom Vision

Customize image recognition to fit your business needs.

Make smarter decisions faster

Anomaly Detector

Identify potential problems early on.

Content Safety

Detect potentially offensive or unwanted content.


Create rich, personalized experiences for every user.

Dynamic language models to power your apps

OpenAI Service

Apply advanced coding and language models to a variety of use cases.

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Build your own Azure AI solutions

Learn essential AI concepts, get hands-on experience, and explore the latest AI products with resources designed specifically for practitioners.

Explore the whole family of Azure AI services

Build mission-critical AI solutions responsibly and on your terms with Azure AI services.

Azure Applied AI Services

Combine the AI models from Azure Cognitive Services with task-specific AI, built-in business logic, programming, orchestration, and customization to bring you ready-to-deploy AI solutions.

Azure Machine Learning

Build, deploy, and manage machine-learning models with tools that make machine learning accessible regardless of your skill level.


Comprehensive security and compliance, built in

  • Microsoft invests more than USD$1 billion annually on cybersecurity research and development.

  • We employ more than 3,500 security experts who are dedicated to data security and privacy.

  • Azure has more certifications than any other cloud provider. View the comprehensive list.

Get started with an Azure free account


Start free. Get USD$200 credit to use within 30 days. While you have your credit, get free amounts of many of our most popular services, plus free amounts of 55+ other services that are always free.


After your credit, move to pay as you go to keep building with the same free services. Pay only if you use more than your free monthly amounts.


After 12 months, you’ll keep getting 55+ always-free services—and still pay only for what you use beyond your free monthly amounts.

See how customers are applying Cognitive Services

Accelerating innovation with Cognitive Services

Airbus uses Anomaly Detector in containers to monitor the health of its aircraft and fix potential problems before they occur, and to simplify pilot training with speech-enabled chatbots.


Helping financial institutions save millions

KPMG uses Cognitive Services to transcribe and catalog thousands of calls, reducing compliance costs for its clients by as much as 80 percent.


Engaging global customers with real-time translation

Volkswagen uses Cognitive Services for high-quality real-time translations, enabling the company to better engage its global customer base.


Facial recognition boosts platform security

Uber uses Cognitive Services to safeguard against fraud by helping to ensure that the driver using the app matches the account on file.


Innovating delivery of trusted content

The BBC used Azure Cognitive Services and Bot Service to create an end-to-end, customized digital voice assistant that captures its brand identity and helps it establish a new conversational relationship with its broad audience.


Insurer boosts customer experience

Progressive Insurance used Azure AI to create an engaging customer experience with a chatbot.

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O'Reilly: Building Intelligent Apps with Cognitive APIs

Learn how to create apps, websites, and bots that communicate naturally with people—regardless of your data science expertise. This e-book takes a closer look at what’s behind apps that see, hear, speak, understand, and interpret needs. Start building intelligent apps with Azure Cognitive Services and the guidance in this e-book.

Fuel App Innovation with Cloud AI Services

Learn 5 key ways your organization can get started with AI to realize value quickly.

Documentation, training, and resources

Documentation and blogs

Get up and running with Cognitive Services by exploring these introductory resources.


Cognitive Services in containers

Cognitive Services blog

Azure AI blog

Learning modules

Learn how to start building intelligent apps with step-by-step guidance from Microsoft Learn.

Cognitive Services 30-day learning journey

Cognitive Services on Microsoft Learn

Community and Azure support

Ask questions and get support from Microsoft engineers and Azure community experts.

Troubleshoot via Stack Overflow

Share feedback and ideas


Frequently asked questions about Cognitive Services

  • Cognitive Services is available in several regions around the world. See availability by region.

  • We guarantee that Cognitive Services will be available at least 99.9 percent of the time. No SLA is provided for the Free tier. See SLA details.


    See the compliance and privacy page for details.



Start building with Cognitive Services