How We Built Our Own AI Interview Grader (No GPT)
Description and use
<p>Most "AI interview" tools are a thin wrapper around GPT. We did the opposite — we trained our own generative model, from scratch, to run the whole interview: ask the questions, grade your answers, and explain them. Here's how it works, what went wrong on the way, and why the harder road was worth it.</p> <p>When you finish an answer in Peakblick, something has to decide: did that actually cover what the question was testing, or did it just sound confident? Doing that well — on a timer, for every answer, consistently — is the whole product. Everything else is a frontend. So we spent our time
Problem
<p>Most "AI interview" tools are a thin wrapper around GPT. We did the opposite — we trained our own generative model, from scratch, to run the whole interview: ask the questions, grade your answers, and explain them. Here's how it works, what went wrong on the way, and why the harder road was worth it.</p> <p>When you finish an answer in Peakblick, something has to decide: did that actually cover what the question was testing, or did it just sound confident? Doing that well — on a timer, for every answer, consistently — is the whole product. Everything else is a frontend. So we spent our time
Outcome
<p>Most "AI interview" tools are a thin wrapper around GPT. We did the opposite — we trained our own generative model, from scratch, to run the whole interview: ask the questions, grade your answers, and explain them. Here's how it works, what went wrong on the way, and why the harder road was worth it.</p> <p>When you finish an answer in Peakblick, something has to decide: did that actually cover what the question was testing, or did it just sound confident? Doing that well — on a timer, for every answer, consistently — is the whole product. Everything else is a frontend. So we spent our time
Evidence
How We Built Our Own AI Interview Grader (No GPT)
- Record date: 2026-10-05T19:41:10.882Z