AI · CoinDesk
Block said it trained Dessa from scratch using a single Nvidia GB200 NVL72 computing system
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For now, Dessa remains a research preview rather than a publicly available product.
Key facts
- Diversified RWA stablecoins sustain 5-7% yield from real credit as crypto funding compresses to ~4%
- Jack Dorsey's payments company Block XYZ $76.45
- Market Closed has unveiled a voice AI model that sounds remarkably human in company demonstrations, prompting reactions ranging from amazement
- Filmmaker Justine Bateman questioned why AI voices need to sound human, arguing that it could be used to mislead people
- X user Alexander Hoff said he had never “heard anything artificial that sounded so… human,” while user Hesamation described it as “straight up sci-fi stuff
Summary
Block unveiled Dessa, a voice AI trained only on human speech that talks without text and runs locally on a MacBook Pro with an M4 Max chip. Reactions split between amazement at how human it sounds and fears it could fuel scams and deception, with CZ eyeing uses in children’s education. Block hasn’t disclosed model size, benchmarks or a release date; the research preview is going first to a small group of AI safety researchers. Jack Dorsey's payments company Block XYZ $76.45 · Market Closed has unveiled a voice AI model that sounds remarkably human in company demonstrations, prompting reactions ranging from amazement at its conversational abilities to warnings that such technology could make phone scams harder to detect. Called Dessa, the model was trained entirely on human speech rather than text and can listen while speaking, allowing it to handle interruptions, laughter and changes in tone during a conversation, ’s announcement.