How We Built Our Own AI Interview Grader (No GPT)

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. 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.