Azure Cognitive Services

A comprehensive family of AI services and cognitive APIs to help you build intelligent apps

What is Azure Cognitive Services?

Cognitive Services brings AI within reach of every developer—without requiring machine-learning expertise. All it takes is an API call to embed the ability to see, hear, speak, search, understand, and accelerate decision-making into your apps. Enable developers of all skill levels to easily add AI capabilities to their apps.

Watch this 50-second video to see how to deploy AI for various use cases using the programming languages you already know.

Explore the benefits of Cognitive Services

Apply AI to more scenarios with the most comprehensive portfolio of domain-specific AI capabilities on the market

Build confidently with the first AI services to achieve human parity in computer vision, speech, and language

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

Get started quickly—no machine-learning expertise required

Azure Cognitive Services

Make smarter decisions faster

Anomaly Detector

Identify potential problems early on.

Content Moderator

Detect potentially offensive or unwanted content.

Metrics Advisor

Monitor metrics and diagnose issues.


Create rich, personalized experiences for every user.

Extract meaning from unstructured text

Immersive Reader

Help readers of all abilities comprehend text using audio and visual cues.

Language Understanding

Build natural language understanding into apps, bots, and IoT devices.

QnA Maker

Create a conversational question and answer layer over your data.

Text Analytics

Detect sentiment, key phrases, and named entities.


Detect and translate more than 90 supported languages.

Integrate Speech into apps and services
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.

Identify and analyze content within images and videos

Computer Vision

Analyze content in images and video.

Custom Vision

Customize image recognition to fit your business needs.


Detect and identify people and emotions in images.

Form Recognizer

Extract text, key-value pairs, and tables from documents.

Video Indexer

Analyze the visual and audio channels of a video, and index its content.

See how customers are applying Cognitive Services

Airbus accelerates innovation with Cognitive Services

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


KPMG helps financial institutions save millions in compliance costs

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


Volkswagen engages 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.


Uber boosts platform security with facial recognition

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


BBC innovates how it delivers trusted content

Using Azure Cognitive Services and Azure Bot Services, the BBC created an end-to-end, customized digital voice assistant that captures its brand identity and helps it establish a new conversational relationship with its broad audiences.


Mine operator increases sustainability by applying custom computer vision

Minsur uses Cognitive Services to more closely monitor the sustainability of its process for transforming polluted water into an agricultural resource.


Documentation, training, and resources

Documentation and e-books

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

Learning modules

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

Community and Azure support

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

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 service-level agreement (SLA) is provided for the Free tier. See SLA details.
  • See the compliance and privacy page for details.

Start building with Cognitive Services