Practice Interviews.
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A concise, AI-powered platform that evaluates your voice, words, and facial expressions — giving you quantified coaching after every mock interview.
No sign-up required · ~5 min per session · Instant AI feedback
Powered by state-of-the-art AI models
By the numbers
Detailed Dimensions
Content, delivery, and non-verbal analysed independently
Real-time Detection
Facial emotion detection every 300ms during recording
Interview Tracks
SW Engineer, PM, Marketing, UX, Data, and General
Private by Design
Recordings processed locally and never stored remotely
Built for AI-driven feedback
Empower your preparation with mock interviews that adapt to your needs, powered by an advanced AI Agents interface.
Instant Results
Get your quantified coaching right after every mock interview session.
Multimodal AI
Evaluating your voice, words, and facial expressions simultaneously.
Private & Secure
Your mock interviews and feedback are kept secure and strictly confidential.
Actionable Coaching
Receive precise tips tailored to your specific answers to improve.
What our users say
Hundreds of candidates and hiring managers use Lumen to quantify interview performance and deliver actionable coaching.
"Lumen has completely changed how our candidates prepare. The detailed breakdown of delivery and non-verbal cues helps them shine before they even step into the interview room."
Muhammad Emirsyah Makarim
Chief Technology Officer
"We use Lumen to standardize our mock interviews. The AI feedback on content alignment and STAR methodology is incredibly accurate and saves us countless hours."
Resan So
Founder
"As a lead, I'm always looking for ways to improve our team's communication. Lumen provides quantified insights that are actionable, not just generic advice."
Ardava Barus
Lead
"The per-question analysis showed me exactly where I hesitated and used filler words. Practicing with Lumen gave me the confidence to ace my final rounds."
M. Hafizh Alkautsar
Founder & Chief Executive Officer
"Lumen's AI-driven feedback on speech clarity and delivery pacing has been instrumental in training our communication teams to pitch effectively and confidently."
Dian Fajar Indriana
Director of Marketing Communication
"Lumen transforms the subjective interview process into objective, measurable data. The quantified metrics on my delivery let me pinpoint exactly what to improve."
Nauval Yusriya Athalla
Data Analyst
"Practicing with Lumen's simulated pressure feels exactly like clutch moments in high-stakes gaming. It helped me translate quick reflexes into structured, confident responses."
Guidomelvin
Community Ambassador
"Using Lumen to simulate product management interviews gave me the precise feedback I needed on my communication style and framework structuring. It's an absolute game changer."
Nabiel Muhammad Irfani
Product Manager
"Lumen has completely changed how our candidates prepare. The detailed breakdown of delivery and non-verbal cues helps them shine before they even step into the interview room."
Muhammad Emirsyah Makarim
Chief Technology Officer
"We use Lumen to standardize our mock interviews. The AI feedback on content alignment and STAR methodology is incredibly accurate and saves us countless hours."
Resan So
Founder
"As a lead, I'm always looking for ways to improve our team's communication. Lumen provides quantified insights that are actionable, not just generic advice."
Ardava Barus
Lead
"The per-question analysis showed me exactly where I hesitated and used filler words. Practicing with Lumen gave me the confidence to ace my final rounds."
M. Hafizh Alkautsar
Founder & Chief Executive Officer
"Lumen's AI-driven feedback on speech clarity and delivery pacing has been instrumental in training our communication teams to pitch effectively and confidently."
Dian Fajar Indriana
Director of Marketing Communication
"Lumen transforms the subjective interview process into objective, measurable data. The quantified metrics on my delivery let me pinpoint exactly what to improve."
Nauval Yusriya Athalla
Data Analyst
"Practicing with Lumen's simulated pressure feels exactly like clutch moments in high-stakes gaming. It helped me translate quick reflexes into structured, confident responses."
Guidomelvin
Community Ambassador
"Using Lumen to simulate product management interviews gave me the precise feedback I needed on my communication style and framework structuring. It's an absolute game changer."
Nabiel Muhammad Irfani
Product Manager
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