K
Khattab Personal Blog
Oct 20, 2026•12 min read
Building Parlayy with Gradium: Rehearsing the Conversations That Matter
What if you could practise a difficult conversation before the stakes were real? I built Parlayy, a voice-first rehearsal platform that lets people practise with realistic AI counterparts and receive actionable feedback. Here’s how I used Gradium’s speech-to-text and text-to-speech capabilities to bring those conversations to life.