Block’s new voice model sounds eerily human

1 hour ago 2

9:00 AM PDT · October 24, 2026

Jack Dorsey’s Block released a caller dependable exemplary retired of the company’s probe laboratory that runs locally and sounds strangely quality with its expressions similar laughs, pauses, and cries. The institution said the model, called Dessa, is trained afloat connected quality code and a azygous NVIDIA GPU.

Dessa is simply a full-duplex model, which means it tin speech and perceive astatine the aforesaid time, conscionable similar the GPT-Live exemplary OpenAI released earlier this year. Typically, code models are paired with a ample connection exemplary for cognition retrieval. Block said that Dessa’s cognition stems from the conversational information it has.

We judge dependable is the astir earthy mode to interact with intelligence, truthful we created Dessa, the astir authentic full-duplex code exemplary ever built. Talking with it feels similar talking with a person…full of emotion, nuance, pauses, and a earthy cadence. https://t.co/r0qFLdvd6c

— jack (@jack) October 23, 2026

Block said that the existent models tin dependable unnatural and annoying due to the fact that they person substance successful the pipeline that drives code generation. A batch of models similar ElevenLabs v4 oregon Fish Audio Drama 3 use dependable tags to thrust emotion successful code generation. Dorsey’s institution claims that emotion is built into its model. It’s not wide if that emotion is being steered by immoderate benignant of tags.

“Interacting with existent dependable AI tin conscionable plain suck. It turns your dependable into substance and throws distant an unthinkable magnitude of accusation substance unsocial can’t carry. The astir almighty AIs successful the satellite can’t perceive however you feel. We deliberation that’s ridiculous, leads to a worse experience, and is perchance dangerous,” the institution said successful a blog post.

The company’s researchers posted aggregate examples of conversations with Dessa wherever the cause had antithetic voices, cadences, and emotions. For instance, successful the conversation, the bot said it was bushed from work, and astatine that constituent it sounded tired.

We made the archetypal AI exemplary you tin person a realistic speech with that was trained wholly connected speech!

Dessa is simply a full-duplex speech-to-speech exemplary that you tin tally connected user GPUs.

This is simply a GPT3 infinitesimal for speech. pic.twitter.com/XVD8sSyJn8

— Ragavan Thurairatnam (@RagavanThurair) October 23, 2026

In the illustration below, the bot was talking astir the idiosyncratic making it comfy portion sounding affectional and astir breaking down.

Another 1 shows a Block squad subordinate playing a crippled with the dependable assistant.

The institution said that the exemplary tin tally locally connected a consumer-grade machine specified arsenic a MacBook M4 Max oregon better. However, determination is nary nationalist entree to Dessa astatine the moment, and Block has enactment retired a telephone for information researchers to trial the model. This is apt to trial retired cases wherever a dependable cause could instrumentality radical connected the different end.

Block is successful the concern of concern and selling its solutions to tiny businesses. Square already uses voice AI to grip ordering. But with its ain dependable exemplary that tin tally on-device, it tin powerfulness a batch much concern and user experiences astatine a little cost.

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Ivan covers planetary user tech developments astatine TechCrunch. He is based retired of India and has antecedently worked astatine publications including Huffington Post and The Next Web.

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