Company

Sesame

Sesame is a US startup building natural-sounding conversational voice AI, including its open Conversational Speech Model (CSM).

AI voice got great. Now the fight is the business model.

Quality is basically solved. Whether you rent the voice or own it — that's the real divide in 2026.

3 min read · 15 June 2026

Sesame's voice AI sounds great. Will anyone keep using it?

Naturalness was the easy problem. Habit is the one that kills voice apps.

4 min read · 28 May 2026