1. Recruitment & Hiring AI (Most Widely Used Category)

HireVue (Highly Used Globally)

Official site:
https://www.hirevue.com/

What it does:

• AI video interviews

• Candidate assessments

• Automated scheduling

• Skills validation

HireVue helps organizations accelerate hiring through structured AI-driven interviews and assessments. It is widely used by large global companies and is considered one of the most established AI recruitment platforms.

Best for daily HR work:

• Candidate screening

• Interview evaluation

• High-volume recruitment

Usage popularity: Very high, especially in enterprise hiring.

Eightfold AI (Fast-Growing Talent Intelligence Platform)

Official site:
https://eightfold.ai/

What it does:

• AI talent matching

• Workforce planning

• Skills intelligence

• Internal mobility insights

Eightfold AI integrates artificial intelligence across the talent lifecycle, helping organizations improve hiring accuracy, retention, and workforce planning.

Usage popularity: Rapidly increasing among global enterprises.

Paradox AI (Recruitment Automation Platform)

Official site:
https://www.paradox.ai/

What it does:

• Conversational recruiting chatbot

• Automated interview scheduling

• Candidate engagement workflows

Paradox AI focuses on automating repetitive recruitment tasks so recruiters can concentrate on strategic hiring and candidate relationships.

Usage popularity: High in industries with large-scale hiring needs.

2. HR Automation and Employee Support AI

Leena AI (Popular HR Chatbot Platform)

Official site:
https://leena.ai/

What it does:

• HR helpdesk automation

• Employee onboarding support

• Policy query resolution

• Workflow automation

Leena AI helps HR teams reduce manual support tasks and improve employee experience through conversational AI.

Usage popularity: Strong adoption in large organizations, particularly in Asia and North America.

XOR AI Recruiting Chatbot

Official site:
https://xor.ai/

What it does:

• Candidate screening chatbot

• Automated interview scheduling

• Talent pipeline automation

XOR focuses on conversational AI recruitment solutions that streamline hiring processes.

Usage popularity: Increasing among recruitment agencies and high-growth companies.

3. Talent Analytics and Workforce Intelligence

Eightfold AI (Also Leading in Talent Analytics)

Official site:
https://eightfold.ai/

Beyond recruitment, Eightfold supports workforce analytics, retention prediction, skills mapping, and internal mobility planning. These capabilities help organizations build long-term talent strategies.

Usage popularity: One of the leading platforms in AI-driven talent intelligence.

4. Everyday AI Productivity Tools for HR

Generative AI Assistants (ChatGPT-type tools)

Common HR uses:

• Job description drafting

• HR policy writing

• Internal communications

• Performance feedback creation

• Learning content development

These tools are increasingly used daily by HR professionals to improve efficiency and content quality.

Usage popularity: Highest overall adoption across HR functions.

Which AI Tools Are Used Most in HR Today?
Most Used Overall

Generative AI assistants are currently the most commonly used AI tools in HR because they support everyday communication, documentation, and content creation.

Most Used in Recruitment

HireVue and Paradox AI are widely adopted for:

• Interview automation

• Candidate engagement

• Hiring workflow optimization

Recruitment remains the largest area of AI adoption in HR.

Most Used in HR Operations

Leena AI is widely used for:

• HR helpdesk automation

• Employee support

• Workflow management

Fastest Growing Category

Talent intelligence platforms such as Eightfold AI are growing quickly due to their ability to provide strategic workforce insights.

How HR Professionals Use AI Daily

Morning tasks:

• Resume screening

• Candidate communication

• Employee query resolution

Midday tasks:

• Communication drafting

• Onboarding support

• Meeting documentation

Strategic tasks:

• Attrition analytics

• Workforce planning

• Leadership insights

AI in HR is moving beyond administrative automation toward strategic decision support. The real value lies not only in saving time but in enabling better workforce decisions, improving employee experience, and strengthening organizational capability.