# Jack Dorsey

Published articles for Jack Dorsey.

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## Block's new voice model sounds eerily human

DevFeed: [Block's new voice model sounds eerily human](<https://devfeed.tech/articles/block-s-new-voice-model-sounds-eerily-human-98899.md>)

Original publisher: [Read original article](<https://techcrunch.com/2026/10/24/blocks-new-voice-model-sounds-eerily-human/>)

Author: Ivan Mehta

Published: 2026-10-24T16:00:00Z

Content type: news

Language: en

Sources: [TechCrunch | AI News & Artificial Intelligence](<https://devfeed.tech/sources/techcrunch-ai-news-artificial-intelligence.md>)

Topics: [Conversational AI](<https://devfeed.tech/topics/conversational-ai.md>), [Local AI](<https://devfeed.tech/topics/local-ai.md>), [Chat Bot](<https://devfeed.tech/topics/chatbot.md>)

Tags: [agent](<https://devfeed.tech/tags/agent.md>), [ai](<https://devfeed.tech/tags/ai.md>), [ais](<https://devfeed.tech/tags/ais.md>), [audio](<https://devfeed.tech/tags/audio.md>), [block](<https://devfeed.tech/tags/block.md>), [blog](<https://devfeed.tech/tags/blog.md>), [bot](<https://devfeed.tech/tags/bot.md>), [business](<https://devfeed.tech/tags/business.md>), [computer](<https://devfeed.tech/tags/computer.md>), [consumer](<https://devfeed.tech/tags/consumer.md>), [conversations](<https://devfeed.tech/tags/conversations.md>), [cost](<https://devfeed.tech/tags/cost.md>), [data](<https://devfeed.tech/tags/data.md>), [elevenlabs](<https://devfeed.tech/tags/elevenlabs.md>), [emotion](<https://devfeed.tech/tags/emotion.md>), [finance](<https://devfeed.tech/tags/finance.md>), [jack-dorsey](<https://devfeed.tech/tags/jack-dorsey.md>), [macbook](<https://devfeed.tech/tags/macbook.md>), [max](<https://devfeed.tech/tags/max.md>), [model](<https://devfeed.tech/tags/model.md>), [voice](<https://devfeed.tech/tags/voice.md>), [voice-ai](<https://devfeed.tech/tags/voice-ai.md>)

### AI overview

Block's Dessa is a full-duplex voice model that can listen and speak at the same time, with emotion expressed through vocal delivery rather than text-driven speech tags, though it is unclear whether tags steer that emotion. Block says it was trained on human speech using a single NVIDIA GPU and can run locally on a MacBook M4 Max or better. The excerpt describes examples of tired or emotional-sounding responses and says the model draws knowledge from conversational data. Dessa is not publicly available; Block is seeking safety researchers to test whether voice agents could deceive listeners.

### Source excerpt

Block said that the voice model can run locally on a MacBook M4 Max