[Report] The World's 40 Most Popular HR AI Tools

FlexOS.work surveyed AI platforms to reveal the leading AI HR platforms. The big winners are in recruiting, but there's much more to the story.
Daan van Rossum
Daan van Rossum
Founder & CEO, FlexOS
I founded FlexOS because I believe in a happier future of work. I write and host "Future Work," I'm a 2024 LinkedIn Top Voice, and was featured in the NYT, HBR, Economist, CNBC, Insider, and FastCo.
March 8, 2024
min read

In our research report, "Generative AI Top 150: The World's Most Used AI Tools," we saw multiple HR platforms rank, including Paradox and EdApp.

For this report, "The World's Most Popular HR AI Tools," we dove deeper into the world of AI for HR and looked at the top platforms, that are either 'native  AI', or have AI as their main product offering. (See more about the research methodology below.)

From this, we created a Top 40 of the most popular AI platforms in HR.

The full list is as follows:

Key insights from "The World's Most Popular HR AI Tools"

1. With over 16 million monthly visitors, and $12 billion in valuation, AI platforms for HR are popular

The Top 40 HR AI platforms for Human Resources combined generate 16 million monthly visitors, indicating strong usage and interest.

Additionally, these platforms are responsible for 400,000 monthly branded searches for the platform or its customer offerings.

The biggest in this top 40 are:

  • Eightfold AI (Recruiting), with 5,5 million monthly visitors and 289,000 Google searches
  • Hirevue (Recruiting), 1,4 million visitors, 25,000 searches
  • Paradox (Recruiting), 4,3 million visitors, 14,900 searches
  • Axonify (L&D), 592,000 visitors, 15,600 searches
  • Beamery (Talent Management), 663,000 visitors, 5,600 searches

From AI video interviews and tailored learning and development to AI skills assessments and self-service employee support, AI in HR covers a wide range of use cases, and promises to make the world of work better for all of us.

In total, these 40 AI for HR companies are valued at an estimated 12,2 billion dollars, signaling a belief from the VC community in the longevity of these platforms. 

While still a speck in the total valuation of HR Tech (companies like Workday and Rippling are valued at 70 and 11 billion, respectively), the momentum for AI in HR seems clear.

2. Recruiting Takes a Distinct Lead

Paradox Video Interviews

Three out of the top five and 15 out of the Top 40 AI for HR platforms are talent acquisition solutions, showcasing a clear lead for Recruiting.

These fifteen AI recruiting platforms together generate 12.2 million visitors and 356,000 searches, a vast majority of the total traffic and searches.

Perhaps not a surprise to those in the industry, HR teams are massively embracing AI recruiting tools.

This is in part because the workload for HRs has increased significantly as, ironically, candidates can send hundreds of job applications with AI tools, and job boards are making it easier than every to apply for roles. This creates a huge amount of applications to sift through, something that HR and TA teams increasingly tap into AI for.

But it's not just about solving problems, it's also about creating opportunities.

As humans are inherently biased, good AI's have the potential to more objectively filter resumes at the top of the funnel (in an experiment, Sapia hired more women than human recruiters.) AI can also mean that the candidate gets much more and better information about the role in the interview process, and that interview processes take less time.

Let's take a look at how these AI Recruiting Software deliver value to HR and companies through their AI offerings:

  1. Eightfold AI helps companies across the entire talent journey, with most of its usage is in recruiting for companies like PayPal, American Express, and Moderna. Eightfold uses AI to understand people's skills individually to ensure they find the right role and continue to develop after being hired. For companies, this means a lot less wasted time, energy, and money of hiring, engaging, and retaining the talent that fits their needs best.
  2. HireVue, offers AI-driven chatbots so candidates can apply 24/7 without HR and TA getting involved in the first line. It focuses on skills assessments to match the right person with the right role. This helps companies like Just Eat speed up the time to interview by 5x, according to HireVue.
  3. Paradox is used by companies like FedEx, McDonald’s, and Amazon to create conversational interview experiences. It uses anAI called Olivia, which interviews candidates via text and answers questions throughout the applicant journey. While Paradox started as an AI chat app, it recently launched Paradox Video, which embeds video capabilities into its conversational AI interface, including answering open-ended questions.
  4. Phenom, is another skills-AI, which aims to understand people at its core to match them with the right opportunities at new or current employers. According to the company, "tens of millions candidates a week use the platform, along with tens of thousands of recruiters."
  5. Sapia, like Paradox, offers video and text interviews for its customers in Australia that include Starbucks and Quantas. Sapia says that candidates like their chat and video interviews better, because they can use its asynchronous nature to retake interview answers and submit what best highlights their strengths.

But that's certainly not all for AI Recruiting.

Right after the five, we see another group of very impressive AI companies, ready to support HR teams:

  • Skillate, parses resumes so TA's don't have to screen them manually
  • Glider, which uses AI to do online skills assessments
  • Textio, which with Textio Loop, helps TA teams optimize job descriptions to be more inclusive
  • Interviewer.AI, a video interviewing platform where candidates speak to AI
  • Humanly, another chat platform similar to HireVue and Paradox
  • Vervoe, which offers candidate assesments to do smart testing at scale
  • Fetcher, an AI + human solution to speed up candidate sourcing
  • Juicebox, a platform that offers PeopleGPT, a ChatGPT-like experience for finding roles
  • Neufast, offering multi-lingual video interviews
  • Xor.AI, Xor automates screening resumes and booking appointments with recruiters

NOTE: Recruiting platforms are often more 'consumer facing', and therefore visible, than platforms that only support businesses internally. This results in more web traffic.

For example, the two heavyweights that account for the majority of traffic and searches, Eightfold and Paradox, have candidate-facing web portals for various customers, that contribute both to their traffic and dominance in this top 40.

3. AI Platforms Show Where the Future of Work is Heading

While recruiting dominates in the Top 40 HR AI platforms, the remaining 25 companies give us a promising glimpse into the future.

Sana Labs AI LMS
Sana Labs AI LMS

In Learning & Development, platforms like Sana Labs (pictured) and EdApp promise highly-tailored learning experiences, that meets employees when they're in search for knowledge. Axonify, number three on the list, stands out as a learning platform for frontline workers, already used by some of the biggest employers like Walmart.

GoFIGR Talent Journeys
GoFIGR Talent Journeys

In Talent Management, platforms like Beamery, Pymetrics, and GoFIGR (pictured) use AI to understand each employee as the human they are, and try to match them with new opportunities in their own organizations, making the experience of working for a company that much richer, and contributing to your sense of mastery and growth.

Leena AI Self-Serve Information
Leena AI Self-Serve Information

And thanks to Tettra, Leena (pictured) and Moveworks, internal Q&A can now be left to AI, so us humans can focus on the more creative and strategic parts of our jobs.

That's a future we can all believe in.

Top 40 Most Popular AI Platforms for HR

Before we get into the detailed data, let's take a look at the impressive companies in this Top 40:

1. Eightfold AI

Eightfold Talent Management
Eightfold Talent Management

Eightfold (actually named after the Noble Eightfold Path in Buddhism!) is the number one HR AI solution, and was founded in 2016 by Ashutosh Garg. In 2023, the company attracted Workday veteran Chano Fernandez to join as co-CEO to help manage its hypergrowth.

As highlighted above, Eightfold optimizes HR recruiting by using AI to understand the best match between a job opening and the candidates applying for them.

However, Eightfold is so much more. Billed as an "Everything Talent" platform, Eightfold helps not just hire the best people, but also develop them to greatness.

With over a billion career trajectories and more than one million skills, it's able to create career paths, highlight personalized learning and development opportunities, and help drive DEI.

As we move towards 'Dynamic Organizations' underpinned by a skill-based work philosophy and practices, engines like Eightfold will be critical in the future of work.

The company already serves clients across 155+ countries, 28+ languages, and 19+ industries, and has no signs of stopping.

2. HireVue

Hirevue text interviewing
Hirevue text interviewing

HireVue is a video and text interview and screening platform, founded in 2004 by Mark Newman. Yup, 2004, as in twenty years ago, when the company had to ship webcams to candidates to make the offering work.

Since then, the company has grown significantly, with 400 employees and an estimated valuation of $400 million. It started adding AI into its platform in 2013, a good ten years before the advent of generative AI and ChatGPT.

The company most recently launched a job search app, Find My Fit, that focuses on matching people based on skills, rather than experience.

3. Paradox

Paradox AI
Paradox AI

Paradox AI, a text and video interviewing solution, was founded in 2016 (clearly a magical year for AI HR platforms, see Eightfold above) by Aaron Matos, previously the CEO of Jobing.com and Recruiting.com.

Aaron saw that HR teams were spending tons of time on manual work, that should be able to be done by AI.

Paradox (and its AI 'Olivia') helps deliver a great candidate experience without hiring a massive amount of recruiters. (Fun fact: Olivia is named after the founder's wife.)

4. Axonify

Axonify is an AI "LMS for the Frontline" which helps train employees like retail store, hospitality, and distribution workers.

The company was founded by Carol Leaman in 2011 and has impressive customers like Walmart, Kroger, Foot Locker, the Four Seasons, and Lowes.

Other than office-based employees, the people that Axonify targets have little time and space for continuous learning.

That's a problem, because in these stores, hotels, and restaurants, they are the direct interface to customers. (Another example of where EX and CX are hyper-connected – see our interview with company culture guru Josh Levine on this.)

5. Beamery

Beamery TalentGPT
Beamery TalentGPT

Founded in Abakar Saidov, Sultan Saidov, and Mike Paterson, in London in 2013, Beamery is a talent management that helps "the world’s largest and most innovative companies create more human talent experiences and unlock the skills and potential of their global workforce."

This sounds like an amazing driver of happiness at work, and indeed, the promise of helping employees unlock new opportunities by ways of a talent marketplace is a great one.

In March of last year, Beamery went all in on AI with TalentGPT (pictured above.) It helps in tasks like role opening recommendations, mentorship connections, skills-based talent matching, job description creation, candidate engagement, and workforce planning, all integrated within workplace tools like Microsoft Teams or Slack.

Josh Bersin dedicated a great episode about it at the time:

6. EdApp

EdApp AI L&D
EdApp AI L&D

The second L&D entry in the top 40 after Axonify, EdApp is a mobile learning management system which uses AI to create training in minutes.

The company was founded by Darren Winterford in January 2015, and is one of the few Australian companies on this list.

Companies like Deloitte, AXA, and BMW tap into EdApp to deliver learning and development powered by AI.

EdApp is a highly mission-driven organization, partnering with the United Nations to "give learners around the world on- and offline access to our course library."

7. Phenom

Phenom AI Talent Experience
Phenom AI Talent Experience

Phenom is a Talent Experience platform focused on Talent Acquisition and Management, founded in 2010 by Mahe Bayireddi, Brad Goldoor, and Hari Bayireddy.

The platform automates and personalizes the hiring process and talent management, with a significant emphasis on AI to handle over 25 billion interactions per year, including 1 billion-plus candidate profiles across 180 countries.

The Phenom team shared with us that "on average, tens of millions candidates a week use our platform, along with tens of thousands of recruiters."

If that wasn't impressive enough, Phenom was valued at $1.4 billion after a $100 million Series D round in 2021, and counts MGM Resorts, Southwest Airlines, and Mars among its customers.

8. Leena AI

Leena AI Virtual Assistant
Leena AI Virtual Assistant

Leena AI is a virtual assistant focusing on transforming employee experiences across HR, IT, and other functions, covering the entire employee journey.

Rather than trying to find out the answers to questions on their own, employees in companies leveraging Leena can simple talk to an AI like how we'd speak to ChatGPT. It typically replaces a more static knowledge base or employee intranet.

Leena is used by over 10 million employees from more than 400 organizations worldwide.

9. Moveworks

Moveworks, founded in 2016 by Bhavin Shah, Vaibhav Nivargi, Varun Singh, and Jiang Chen, is a platform similar to Leena AI, automating employee support across various functions.

The company, headquartered in Mountain View, California, has secured $315 million in funding, valuing it at $2.1 billion.

The technology is used by over 5 million employees at more than 300 companies, including Broadcom and Slack, to improve the employee experience through conversational AI.

10. InFeedo

InFeedo AI EX
InFeedo AI EX

InFeedo, established in 2013 by Tanmaya Jain, is a leading employee engagement tool akin to platforms like Culture Amp, designed to enhance workplace engagement and address employee concerns effectively.

The platform is renowned for its AI chatbot, Amber, which conducts intelligent conversations with employees to gauge morale, gather feedback, and identify attrition risks.

InFeedo's counts Lenovo, TATA, AON, Puma, and SIEMENS as its customer, totalling hundreds of thousands of employees worldwide.

And the Top 11 – 40:

  1. Sana AI (L&D)
  2. Sapia (Recruiting)
  3. Skillate (Recruiting)
  4. Pymetrics (Talent Management)
  5. Visier (People Analytics)
  6. Glider (Recruiting)
  7. Simpplr (Employee Support)
  8. Uplimit (L&D)
  9. Zavvy (L&D)
  10. Textio (Recruiting)
  11. Hive Learning (L&D)
  12. Interviewer.AI (Recruiting)
  13. Workera (Talent Management)
  14. Humanly (Recruiting)
  15. Fuel50 (Talent Management)
  16. Vervoe (Recruiting)
  17. Fetcher (Recruiting)
  18. Tettra (Knowledge Management)
  19. Gloat (Talent Management)
  20. One Model (People Analytics)
  21. Kona (L&D)
  22. Juicebox (Recruiting)
  23. Effy (Performance Management)
  24. Learnt AI (L&D)
  25. Neufast (Recruiting)
  26. Techwolf (People Analytics)
  27. HR Flow (API)
  28. Retrain AI (Talent Management)
  29. GoFIGR (Talent Management)
  30. Xor.AI (Recruiting)

Top 40 – The Full Data

For a full breakdown of the Top 40 AI HR tools, please see the table below. To understand these number better, please see the research methodology below. If we missed you or your numbers don't seem quite right, please contact us.

About the Research Methodology

To create this overview, we reviewed tens of AI for HR tools referenced in news, online directories, and lists.

We may have overseen some tools but believe this is a comprehensive selection, and invite companies we've overseen to submit their listing for our next survey.

We excluded HR software that existed before AI unless they were significantly transformed, or HR applications that utilize AI for minor features, like some desk booking software.

Usage estimation: to estimate usage, which most of these tools don't report, we took the average relative ranking on Similarweb and Ahrefs Organic Search Traffic as proxy indicators for usage.

  • For Similarweb, we took the average monthly visits from December 2023 – February 2024.
  • For Ahrefs SEO Traffic, we took the 30 day-organic search volume on the brand name or URLs on the brand site that are not blogs or editorial in nature, like customer ATS portals in the case of Eightfold, polled on 7 and 8 March 2024.

This is very much an imperfect view into the popularity of AI HR tools, driven by our curiosity. For some web tools, the proxies we've taken for usage could be solid, as web traffic and search dominance likely reflects the usage and interest in the platform.

Note: a huge shout-out to Georgios Markakis and his community for the many suggestions (and constructive feedback) following the initial publishing of this list. Your inputs have made this a much better report!

In future months, if the appetite is there for it, we'd love to include real usage numbers, as reported by these platforms, to create better rankings.

About FlexOS

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