Dessa learnt to talk without ever reading a word. Block, the company behind Square and Cash App, says its new AI model was trained from scratch on nothing but human conversation, with no text and no pretrained models.

The result, Block claims, is a voice that laughs mid-sentence, gasps and cuts in when it should. The Block Dessa AI voice model is a research preview, and every demo so far comes from Block itself.

How the Block Dessa AI voice model works?

Voice assistants normally convert your speech to text, create a........

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