# Block Unveils Dessa, a Full-Duplex Speech Model Trained Only on Speech

> Source: <https://www.marktechpost.com/2026/10/29/block-dessa-full-duplex-speech-model/>
> Published: 2026-10-29 07:50:39+00:00

Block’s AI lab released Dessa, a full-duplex speech-to-speech model trained only on human conversation audio. It runs locally on a MacBook Pro M4 Max, but Block has published no size, benchmarks or weights.

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