Block's AI laboratory, according to MarkTechPost, released Dessa—a full-duplex speech model trained solely on recordings of human conversations.
According to the same report, the model runs locally on a MacBook Pro with an M4 Max chip. Block has not yet published details on the model's size, test results, or its weights.
The practical significance of the launch is currently limited by available data: local operation on a specific computer is noted by the source, but independent verification of characteristics and comparison with alternatives is not possible.
editorial commentary
Why it matters
The likely consequence is increased interest in local speech systems if Block confirms purported properties with measurements and discloses details. The nearest observable signal is the publication of technical documentation, tests, or weights. Substantial uncertainty remains due to a single source and lack of primary material.