Block Unveils Dessa: AI Voice Model Trained Entirely on Human Speech Captures Emotional Nuance
Jack Dorsey's Block released Dessa, a full-duplex AI voice model trained entirely on human speech that can listen and speak simultaneously while expressing emotions like laughter, pauses, and sadness. Running locally on a single NVIDIA GPU or MacBook Pro M4 Max, the model processes audio directly without text conversion, but Block is enlisting AI safety researchers to assess impersonation risks before wider release.