Top 6 AI Screening Tools for Volume Hiring

The problem is that the screening process is so time-consuming.

Whether recruitment is your full-time role or just one more task on your plate, no one enjoys the admin headache of back-and-forth questions or interview scheduling.

That’s why artificial intelligence is so exciting for recruitment.

AI screening tools based on smart machine learning algorithms are already being used by agencies and in-house teams to automate candidate qualification, filter out non-matching candidates, and schedule interviews with shortlisted ones.

So let’s take a look at some of the best AI screening tools for streamlining your volume hiring process.

1. Carv

Carv is an AI recruitment platform built to take the manual work out of the end-to-end hiring process, from application to scheduling, evaluation, and talent pooling.

The platform offers three powerful modules that correspond to the main phases of the recruitment process:

• Conversational AI technology for hands-off pre-screening and automated interview scheduling,  
• Interview AI technology for pre- and post-meeting admin tasks, such as creating job descriptions, candidate profiles, or updating the ATS candidate records,
• Talent pool AI technology for sourcing and matching potential candidates to jobs.

Carv is suitable for both agency and in-house recruitment, and can serve white-collar recruiting teams and blue-collar staffing firms alike.

For volume hiring specifically, recruiters are best supported by combining the conversational AI and talent pooling AI modules.

The conversational AI module comes in the form of AI chat agents - voice or text - that can take over tasks such as pre-screening candidates, answering questions, or scheduling interviews. The module uses natural language processing technology to “understand” candidate communication in real time, and communicate with job seekers in their native language.

The AI-powered screening assistants can contact candidates via WhatsApp, SMS, phone call, or email, 24/7. The AI algorithms ensure human-like conversations that stay within the brand voice and boundaries set by the recruiting team.

The functionality is easy to setup, as it doesn’t require an ATS integration - although it does work best when the two platforms are integrated. Through the Carv-ATS integration, candidate data captured during pre-screening is automatically pushed to the ATS, making future candidate engagement easier.

How the conversational AI module works

• Publish your job opening to your career site or a job board.  
• Copy the job posting URL or pull the job requirements from your ATS into the Carv conversational AI module.
• Let AI take over: The AI designs a candidate conversation flow based on the job context, with minimum input from you.
• Qualify candidates instantly: Assess candidate skills with knock-out and qualification questions. You can always adjust the questions asked, or instruct the AI agent to ask specific things to optimize the pre-screening process.
• Schedule interviews: By connecting Carv to your calendar, you can delegate the interview scheduling to the AI assistant, cutting the back-and-forth of interview logistics.

Top features of Carv for volume recruitment

• Automates early-stage screening: Carv contacts job seekers through their preferred communication channel and conducts pre-screening interviews via WhatsApp or voice to find the right candidates for a given vacancy.
• Candidate-first experience: The AI agents operate 24/7 across languages, giving candidates timely, human-like engagement.
• Shorter time to hire: Carv supports faster hiring decisions by providing recruiters with a shortlist of qualified candidates.
• Faster sourcing: By updating the ATS automatically, Carv ensures that candidate sourcing doesn’t start from scratch for every new vacancy. Instead, existing talent pool candidates are matched to open roles, and the AI conversation flows kick in, qualifying the job applications and initiating the interview process for the candidates that make good matches.

The recruiting software integrates with most applicant tracking systems, from Bullhorn and Avature to Workable, Loxo, or Carerix.

2. Paradox

Paradox uses its conversational AI assistant, Olivia, to guide candidates from application to interview through chat.

The talent acquisition platform provides a mobile-first application experience, making it ideal for managing in-house roles via text-based channels—without recruiters needing to use their personal devices.

Olivia powers the conversational hiring process, handling everything from applications to scheduling. Candidates can chat via SMS, WhatsApp, Facebook Messenger, or the web.

Olivia can answer questions, screen applicants, and offer interview slots—all without recruiter involvement.

Top features of Paradox

• Conversational AI assistant (Olivia): Automates screening, scheduling, and onboarding tasks, freeing recruiters from repetitive admin work.
• Mobile-first candidate experience: Enables candidates to apply and get screened via SMS, WhatsApp, or Facebook Messenger.

• Candidate assessments: Provides personality and potential-based assessments to improve candidate-role fit.

How it works

1. Olivia initiates conversations and allows candidates to apply via text.
2. The platform screens applicants based on job-specific criteria through SMS, WhatsApp, or Facebook Messenger.
3. Candidate profiles are updated with structured data.
4. Qualified candidates receive available interview slots based on real-time calendar sync.

Paradox works best with its own conversational ATS for sourcing but can also integrate with your existing system of record to send back structured data.

3. Fountain

Fountain is AI recruiting software built for hiring teams managing high volumes of hourly or frontline roles and looking for a 24/7 screening solution. Its AI-powered product, AI recruiter, automates phone screenings and generates AI-driven summaries with candidate scores.

Fountain prioritizes automated candidate assessments and credential verification, making it ideal for roles where volume hiring needs to be balanced with quality.

Candidates complete phone interviews at their convenience, while Fountain’s AI listens, analyzes responses, and generates a scored summary—instantly identifying the best-fit candidates for hiring managers.

Top features

• Simple application process: Candidates can apply, screen, and schedule interviews via SMS or WhatsApp.
• Smart scheduling: Candidates instantly select interview slots, reducing manual coordination.
• Real-time insights: Tracks hiring funnel performance for long-term analysis.

How it works

1. Candidates complete phone interviews anytime using their mobile devices.
2. AI analyzes responses, generates interview summaries, and assigns candidate scores for recruiters to review.
3. Qualified candidates move forward instantly within the Fountain system or can be contacted by a recruiter.

Fountain AI Recruiter is available within the Fountain Hire platform. Full automation features require using the entire platform.

4. Harver

Harver is designed for in-house hiring teams in BPO, retail, and contact centers. It replaces manual screening with structured assessments and workflow automation.

Unlike generative AI solutions, Harver focuses on automated candidate matching powered by assessment data. This approach is ideal for teams looking to maximize their existing ATS by sourcing the most relevant candidates.

Harver also offers candidate screening through simulations and job-relevant tests for more advanced roles. The platform scores results, identifies best-fit candidates, and pushes structured data to your ATS—while automating interview scheduling and reference checks.

Top features

• AI-powered candidate matching: Matches candidates to roles based on assessment results, skills, and job fit while integrating with your ATS.

• Automated video interviews: Recruiters can record custom questions, and candidates respond in natural language.
• Conversational chatbot: Enables candidates to engage naturally in chat.

How it works

1. Candidates complete job-relevant assessments, such as situational judgment tests and simulations.
2. Harver scores candidates and matches them to suitable open roles.
3. Insights on job readiness, skills, and fit are pushed to the ATS for recruiters to analyze.
4. The platform automates interview scheduling and reference checks for top talent.

Harver can function as a standalone tool or fully integrate with your ATS to centralize data and automate key hiring steps.

5. PreScreen AI

PreScreen AI AI is designed for enterprise-level, in-house recruitment teams managing large-scale, high-volume hiring across multiple regions.

Its core focus is AI-driven voice interviews for candidate screening.

The platform analyzes CVs and job descriptions to generate customized questions, then conducts natural voice conversations in 50+ languages.

AI evaluates soft skills, technical abilities, and engagement, delivering ranked shortlists for recruiters to act on.

Top features

• AI interviews: Conducts real-time, human-like voice or text interviews.
• Skill evaluation: Assesses both technical and soft skills using sentiment analysis.
• Multilingual: Runs interviews in 50+ languages.

How it works

1. AI reviews each CV and job description to create tailored screening questions.
2. Candidates complete voice-based interviews at their convenience.
3. AI evaluates technical and soft skills, generating a ranked “fit score.”
4. Recruiters receive interview summaries and AI-driven shortlists.

PreScreen AI integrates with ATS, CRM, and telephony systems via API or Zapier. It can also be used as a standalone tool with custom data connections.

6. HireVue

HireVue is a virtual hiring platform designed for in-house recruitment teams managing high-volume hiring, particularly in retail, hospitality, and healthcare.

Its screening function combines assessments and conversational AI, engaging candidates through SMS or WhatsApp.

The platform also offers video assessments, where AI evaluates candidate responses, updates ATS statuses, and sends interview invites via SMS or WhatsApp.

Top features

• AI-powered video analysis: Analyzes recorded video interviews, assessing verbal and non-verbal cues to evaluate communication, adaptability, and problem-solving skills.

• Competency-based scoring: Generates an "employability" score to rank candidates.
• Ethical focus: Designed to shortlist candidates objectively and reduce hiring bias.

How it works

1. Recruiters set up role-specific interview kits and qualification criteria to filter the best candidates.
2. Candidates complete video interviews or skills assessments.
3. AI evaluates responses and matches candidates to suitable roles.
4. Next steps and interview invites are sent via SMS or WhatsApp.

HireVue integrates with most major ATS platforms, ensuring a seamless and automated workflow.

Over to you

In volume hiring, the pre-screening stage can make or break your results. If it's too slow, you risk losing top candidates. If it's too manual, it becomes difficult to keep up.

The good news is that AI tools can help take some of the time-consuming tasks over.

If you’re just starting to use AI recruiting tools, an AI-powered screening platform might be the best place to start, as it’ll take over the application handling stage of the process, giving recruiters their time back for more impactful work.