# Block unveils Dessa, a full-duplex voice model that runs locally on MacBooks

> Original title: Block 推出全双工 AI 语音模型 Dessa：真人感拉满，支持苹果 MacBook 本地运行

- Source: IThome · AI
- Published: 2026-10-25T02:29:30.000Z
- Bad Influence: https://badinfluence.news/items/hrddgnj3auikop149g2ia3r1d
- Original: https://www.ithome.com/1/017/557.htm

## Summary

Block, the company co-founded by Jack Dorsey, has released Dessa, a full-duplex voice model that can express laughter, pauses and choking. The company says Dessa was trained only on human speech data using a single rack of Nvidia GPUs and can run locally on consumer MacBooks with M4 Max or higher. Dessa is not yet open for public trial, and Block is inviting safety researchers to test risks such as voice agents deceiving humans.