Block unveils voice model that runs locally on MacBook — on-device speech AI gets real

Context

Block has released a voice model that sounds strikingly human and can run locally on a MacBook M4 Max, without relying on cloud infrastructure. On-device synthesis lowers latency and data-privacy concerns, which matters for brands weighing voice interfaces in customer service, audio content, and branded assistants. Teams exploring synthetic voice should note the shift toward local deployment and assess quality against their disclosure and consent requirements.