Leveled Up Our Mock Interview Platform - Now Running 4 LLMs Simultaneously!
Hey IH community! 👋
Just shipped a major update to Prepin - our AI mock interview platform for tech folks. The interview engine has been completely overhauled and now runs 4 LLMs simultaneously:
Core interview engine for technical questions/answers
Real-time emotion tracking to analyze confidence levels
Enhanced text-to-speech & speech-to-text for natural conversation
AI Copilot that provides subtle hints during tough questions
We've also massively improved the post-interview feedback with detailed breakdowns of your technical, communication, and problem-solving skills. Our team spent months curating cultural fit data for 1000+ companies - so now the system can simulate interviews at Google, Meta, Amazon, or your local startup with appropriate company culture questions.
The question bank has grown to over 5,000 technical questions across frontend, backend, devops and system design.
Revenue has grown 34% since these improvements, and users are spending 3x longer in practice sessions. The emotional intelligence feature has been the biggest surprise hit - people love seeing how their confidence fluctuates during different question types!
What's been your experience with AI tools for interview prep? Any features you wish existed but haven't seen yet?
