Today, we’re looking at Retell AI, a company building ultra-realistic voice agents that are already replacing real call-center workflows. Retell has grown from $8 million to $36 million in ARR in just eight months, all with a team of only 21 full-time employees. We’ll unpack what makes their tech so compelling, how businesses are using it today, and why voice automation is becoming one of the most competitive corners of AI.