InterviewLM vs Karat
Compare fully automated AI-native assessments with outsourced human interview services.
Summary
Karat outsources technical interviews to trained human interviewers (Interview Engineers) who conduct live sessions on your behalf. InterviewLM fully automates the process: AI conducts interviews, evaluates candidates, and provides detailed reports — no humans required. The key difference: Karat scales human interviews; InterviewLM replaces them entirely with AI that's available 24/7 at a fraction of the cost.
Feature-by-Feature Comparison
| Feature | InterviewLM | Karat |
|---|---|---|
| Interview Method | Fully automated AI — voice interviews, coding assessments, evaluations | Human Interview Engineers conduct live interviews |
| Availability | 24/7, any timezone, instant start | Business hours scheduling, 48-72 hour lead time |
| Cost Per Assessment | From $7.50/assessment | $300+ per interview |
| Assessment Types | 13 types: voice, coding, system design, case study, role play, and more | Live technical interviews (coding + system design) |
| AI Collaboration Scoring | 4-dimension AI collaboration measurement | Not available — evaluates traditional coding skills |
| Scalability | Unlimited concurrent assessments | Limited by interviewer availability |
| Consistency | AI applies identical rubrics every time | Trained interviewers follow structured rubrics |
| Candidate Experience | Self-paced, no scheduling, real sandbox environment | Live conversation with trained interviewer |
| Evaluation Speed | Instant results after assessment | 24-48 hours for interviewer notes and scorecard |
| Setup & Customization | Self-serve pipeline builder, custom per role/seniority | Custom question design with Karat team |
| Pricing Model | Per-stage credits, no subscription or minimums | Per-interview pricing with volume contracts |
| Human Element | AI-only (optional human review of reports) | Human interviewer creates personal connection |
Why choose InterviewLM
- 90%+ cost savings ($7.50/assessment vs $300+/interview)
- Available 24/7 in every timezone — no scheduling required
- 13 assessment types beyond just live interviews
- AI collaboration scoring measures modern engineering skills
- Unlimited concurrent assessments — no capacity constraints
- Instant evaluation results, no waiting for interviewer notes
Why choose Karat
- Human interviewers can probe deeper on ambiguous answers
- Candidates get a personal, conversational experience
- Trained Interview Engineers provide nuanced judgment
- Strong track record with large enterprise customers
- Human touch may better evaluate cultural fit signals
InterviewLM is best for
Teams that need to screen high volumes of candidates quickly and affordably. Best for companies hiring across timezones, startups watching costs, and teams that want to evaluate AI collaboration skills alongside technical ability.
Karat is best for
Teams that prioritize human interaction in the interview process and have budget for premium per-interview pricing. Best for companies that want outsourced interviewers to handle the entire process with personal touch.
About Karat
Karat is a technical interview-as-a-service company that provides live, human-conducted technical interviews. Founded in 2014, they employ trained Interview Engineers who conduct interviews on behalf of hiring companies, offering consistent evaluation at scale.