10 Best AI Interviewers of 2025 (Ranked & Compared)

Quick Comparison Table

Selection Criteria: How We Ranked

We evaluated each platform against five key criteria:

• Screening Speed — How quickly can candidates complete interviews and teams receive shortlists?
• Scalability — Does pricing penalize high-volume hiring? Are there interview caps?
• Candidate Experience — Is the format mobile-friendly? Does it reduce friction?
• Fairness & Transparency — Structured rubrics, audit trails, bias mitigation
• Integrations — ATS compatibility and data export options

1. ISA (Theia Jobs) — Best for Unlimited High-Volume Screening

Format: Chat-first AI interviews • Pricing: From $39/job • Limits: Unlimited interviews

Pros

• Unlimited interviews — screen entire applicant pools without caps
• 24/7 availability with instant chat interviews
• Agentic personalization (not basic chatbot scripts)
• 130+ languages supported
• Under-24-hour shortlists
• 4.8/5 candidate experience rating

Cons

• Not designed for senior technical panel interviews
• Voice interviewing coming soon (not yet available)

Best For

Teams with high applicant volume who want consistent, fair screening without per-interview fees. Ideal for startups without recruiters, agencies, and enterprises with overwhelming pipelines.

Learn more about ISA →

2. HireVue — Best for Enterprise Video Screening

Format: Video + AI • Pricing: Enterprise • Limits: Volume-based

Pros

• Comprehensive enterprise feature set
• Strong compliance and security posture
• Game-based assessments available
• Robust ATS integration ecosystem

Cons

• Higher cost and implementation complexity
• Video format can create candidate friction
• Volume-based pricing may limit screening fairness

Best For

Large enterprises with dedicated TA teams and budget for comprehensive video-based screening.

See Theia vs HireVue comparison →

3. Paradox (Olivia) — Best for Conversational AI + Scheduling

Format: Chat • Pricing: Enterprise • Limits: Volume-based

Pros

• Strong conversational AI for scheduling
• High-volume hourly hiring focus
• Career site chatbot functionality

Cons

• Enterprise pricing may exclude smaller teams
• Primarily focused on scheduling vs. deep screening

Best For

Large organizations hiring hourly workers at scale who need scheduling automation.

4. Sapia.ai — Best for Bias-Free Chat Screening

Format: Chat • Pricing: Per-candidate • Limits: Tiered

Pros

• Strong focus on bias reduction
• Chat-based format reduces candidate anxiety
• Personality insights from responses

Cons

• Per-candidate pricing can add up at volume
• May require calibration for complex roles

Best For

Organizations prioritizing DEI initiatives with moderate hiring volumes.

See Theia vs Sapia.ai comparison →

5. Knockri — Best for Competency-Based Fairness

Format: Video + transcript analysis • Pricing: Per-candidate • Limits: Tiered

Pros

• Transcript-based scoring removes visual bias
• Strong competency framework alignment
• Focus on structured hiring

Cons

• Video recording still required
• Per-candidate costs at scale

Best For

Organizations with established competency frameworks seeking structured, auditable hiring.

See Theia vs Knockri comparison →

6-10. Other Notable Platforms

The remaining platforms serve specific niches:

• Interviewer.AI — Good entry point for SMBs starting with video screening
• myInterview — Collaborative video review for team-based hiring decisions
• VidCruiter — Highly configurable for complex interview workflows
• Spark Hire — Simple one-way video for straightforward screening
• Pillar — Interview intelligence and analytics for improving hiring decisions

How to Choose the Right AI Interviewer

Consider these factors when selecting a platform:

• Hiring Volume — High volume? Prioritize unlimited pricing models (like ISA) over per-interview fees
• Candidate Comfort — Chat-first formats typically have higher completion than video
• Speed to Shortlist — If time-to-fill matters, look for 24-hour shortlist guarantees
• Fairness Requirements — Ensure structured rubrics and audit trails for compliance
• ATS Integration — Verify native integration with your existing systems
• Global Hiring — Check language support if hiring internationally

Frequently Asked Questions

What is an AI interviewer?

Software that conducts structured interviews using AI, often via chat or video, scoring responses against role rubrics to help teams shortlist faster.

Which AI interviewer is best for high-volume hiring?

Chat-first platforms (ISA, Sapia, Paradox) excel at high-volume prescreening. ISA is the only one with truly unlimited interviews at a fixed price.

Why prioritize chat over video for AI interviews?

Candidates overwhelmingly use AI via text. Chat reduces friction from environment, mood, or bandwidth issues—and feels more natural than recording video.

See detailed head-to-head comparisons: Theia vs HireVue • Theia vs Knockri • Theia vs Sapia.ai • All comparisons