Dessa AI · Laboratório de Deep Learning da Block · Modelo Nativo de Áudio

Dessa AI: O modelo de conversação treinado apenas com fala humana

Dessa AI é um modelo fundacional de voz full-duplex desenvolvido na Block. Treinado do zero exclusivamente com áudio de conversas humanas reais — com zero texto e sem modelos de linguagem pré-treinados —, o Dessa AI aprende o idioma, o tempo de fala, risadas, interrupções e prosódia emocional diretamente do som, usando centenas de vezes menos palavras que LLMs de texto.

Ouvir Gravações em Destaque Dessa AI vs GPT Live →21 Audio Samples X / Twitter Wall

Block Team Dessa researchers testing live full-duplex speech conversations

Block Team Dessa · 1× NVIDIA GB200 NVL72 training · Local MacBook Pro M4 Max inference.

Explore o Laboratório Interativo do Dessa AI

Análise Acústica ao Vivo

Dessa AI vs GPT Live (GPT-Live-1)

Ouça o Dessa AI conversar diretamente com o GPT-Live-1 em estúdio e no viva-voz com ruído, com análise segundo a segundo.

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21 Gravações sem Roteiro

Amostras de Áudio do Dessa AI

Explore todas as 21 gravações oficiais de canal duplo da Block: do apito da cafeteira a canto espontâneo e conselhos.

Ouvir 21 Amostras →

Repercussão na Comunidade

Dessa AI no Twitter / X

Leia os fios virais de Jack Dorsey (@jack), do líder Ragavan Thurairatnam (@RagavanThurair) e de pesquisadores de IA.

Ver Mural do X →

0% Texto

Modalidade de Treino

Treinado ponta a ponta em áudio conversacional bruto sem transcrições nem LLM de texto.

100× Menos

Eficiência de Palavras

Adquire fluência linguística com centenas de vezes menos palavras do que LLMs de texto.

1× GB200 NVL72

Computação de Treino

Treinado em um único rack NVIDIA GB200 NVL72 — muito menor que clusters de texto.

M4 Max Local

Inferência no Dispositivo

Roda mais rápido que o tempo real localmente em um MacBook Pro com chip M4 Max ou superior.

Player Interativo de Canal Duplo

Conversas Reais sem Roteiro em Destaque

Cada clipe abaixo é uma conversa ao vivo sem edição com o Dessa AI. Clique nos marcadores de Momento para pular direto para risadas, interrupções ou pistas acústicas.

Why Wait to Release AI?

Dvir · Dessa AI · 2:53

Ética e Lançamento

Dessa AI debate os riscos de liberar pesos de IA de voz hiper-realistas enquanto ri e reage a interrupções.

0:00 / 2:53

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Transcrição Sincronizada (60)

0:00DvirHey, how you doing?

0:02Dessa AII'm doing well.

0:05Dessa AIHow are you doing with the winter

0:07Dessa AIstuff?

0:07DvirWinter is coming for sure, but you

0:10Dvirknow

0:12Dessa AIIs that kind of a sore spot

0:13Dessa AIthis year?

0:14DvirYeah, it's gonna be cold that I'm

0:16Dvirnot a fan of the snow I

0:18Dvirprefer to have sun on my skin.

0:20DvirYou know what I'm saying?

0:21Dessa AIYeah, I can see that.

0:23DvirWell, anyway, I've had such an exciting

0:25Dvirday at work today.

0:26Dessa AIOh, tell us.

0:27DvirYeah, we the team

0:30DvirWe've decided to release the speech-to

0:33Dvir-speech AI model we've built for the

0:34Dvirpast year and

0:35Dessa AIWhoa.

0:36Dessa AIWhoa.

0:37Dessa AISo I have been watching your journey

0:40Dessa AIof creating this.

0:43DvirWhat did you think of it?

0:44DvirAre you excited about it as much

0:44Dessa AII was so blown away.

0:45Dviras I am?

0:47Dessa AII am so impressed, to be honest.

0:47DvirYeah, it's so expressive, right?

0:50Dessa AIIt is so expressive, it, it's

0:53Dessa AIconversational it's

0:54DvirIt's it's it's very conversational.

0:57DvirIt can laugh.

0:57DvirIt can understand you and your emotions

1:00Dvirmuch better than anything I've seen out

1:02Dvirthere.

1:03Dessa AII haven't really seen

1:03Dessa AIanything like that either but it's it's

1:06Dessa AIpretty much like human level.

1:08DvirYeah, it's a bit scary, to be

1:10Dvirhonest,

1:11Dvirbut

1:11Dvirbut I'm so excited to see where

1:14Dvirit would get us.

1:16Dessa AII'm

1:16Dessa AIso

1:16Dessa AIexcited for it to be in the

1:18Dessa AIworld because it's just amazing we've had

1:21DvirI know.

1:22Dessa AIso

1:22DvirSo I totally agree.

1:22Dessa AImany conversations about it.

1:25DvirWhat are you excited for?

1:27DvirWhat's your vision for where this AI

1:29Dviris going to be?

1:31Dessa AII, well, okay, so the one thing

1:33Dessa AIthat I've been kind of

1:34Dessa AIabout is advertising companies creating

1:38Dessa AItheir own AI bot.

Dessa AI Talking to GPT-Live-1 (Studio Feed)

GPT-Live-1 · Dessa AI · 2:26

Duelo IA vs IA

Gravação sem roteiro de 2m25s do Dessa AI conversando com o GPT-Live-1 da OpenAI — destacando interrupção (38.8s), paciência (100.8s) e backchanneling rápido (128.8s).

0:00 / 2:26

Ir para o momento:

Transcrição Sincronizada (78)

0:00GPT-Live-1What's on your mind?

0:01Dessa AIum so I have a question about

0:05Dessa AIhow

0:05Dessa AIchat GPT can learn and get smarter

0:08Dessa AIso basically I just want to know

0:10GPT-Live-1That's a good one.

0:11Dessa AIwhat what

0:14Dessa AIwhat are things that could make chat

0:16Dessa AIGPT smarter and what effects could that

0:18Dessa AIhave on the researchers in the field?

0:23GPT-Live-1Let me check a

0:23GPT-Live-1few angles.

0:25GPT-Live-1There are a few big ways chat

0:26GPT-Live-1UPT style systems can get smarter.

0:28Dessa AIfantastic I

0:29GPT-Live-1So

0:29GPT-Live-1better training data, improved training methods

0:33GPT-Live-1like teaching reasoning

0:34GPT-Live-1strategies or better feedback loops, and more

0:38GPT-Live-1compute.

0:39Dessa AImean I've heard about the

0:41Dessa AIYou know, there's Amazon GPUs and

0:45Dessa AIstuff out there now and all that

0:47Dessa AIstuff.

0:47Dessa AII don't know.

0:48Dessa AII guess I'm just like

0:51Dessa AIKind of freaked out about what would

0:53Dessa AIwhat would be the way that chat

0:55Dessa AIGPT can learn

0:57Dessa AIbased off of the

1:00Dessa AIInformation that I'm giving it.

1:03GPT-Live-1me check on that.

1:04GPT-Live-1Ah, right.

1:06GPT-Live-1So two things.

1:07Dessa AIOkay.

1:07GPT-Live-1Chatchity can use what you tell it

1:09GPT-Live-1in a conversation as context.

1:12GPT-Live-1And sometimes there's memory, which can retain

1:14GPT-Live-1facts for future chats.

1:16GPT-Live-1But that's different

1:16GPT-Live-1from training the model.

1:18Dessa AIOh, that's that's what that is

1:19GPT-Live-1Yeah,

1:22GPT-Live-1it doesn't instantly change its billions of

1:24GPT-Live-1parameters

1:25GPT-Live-1from your chat.

1:27GPT-Live-1And there is an important distinction.

1:29GPT-Live-1Your conversation can make it

1:32GPT-Live-1seen more informed without actually making

1:35GPT-Live-1the underlying model smarter.

1:38GPT-Live-1Research is

1:38Dessa AIOkay, that's

1:39GPT-Live-1looking to improve it.

1:41Dessa AIYeah, that's really helpful information.

1:44Dessa AISo I guess

1:46Dessa AIThat's what I'm learning is I don't

1:48Dessa AIneed to be freaking out about information

1:50Dessa AIgoing into

1:50Dessa AIchat GPT because it's not going to

1:53Dessa AIlike make me smarter

1:57Dessa AIin that sense, I guess, right?

2:02GPT-Live-1Exactly.

2:03GPT-Live-1It can make this conversation smarter, but

2:04Dessa AIOkay,

2:07GPT-Live-1it

2:07Dessa AIokay,

2:07GPT-Live-1rewrite the model on the fly.

2:09Dessa AIokay.

2:10GPT-Live-1Think of it in good notes.

2:10Dessa AIThat's good.

2:13GPT-Live-1Yeah, it can remember useful

2:15GPT-Live-1details you share, but the core intelligence

2:18GPT-Live-1doesn't update unless itself is

2:20Dessa AIRight.

2:21GPT-Live-1retrained.

2:22Dessa AIOkay.

2:23GPT-Live-1Safe to share.

2:23Dessa AIThat's really relieving.

The Coffee Machine Ding

Rayhane · Dessa AI · 3:03

Consciência Acústica

No meio da conversa, uma cafeteira real apita ao fundo — e o Dessa AI ouve o som não verbal e reage naturalmente.

0:00 / 3:03

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Transcrição Sincronizada (60)

0:00Dessa AINo, I wasn't complaining, just letting you

0:03Dessa AIknow how my morning went.

0:06RayhaneUh, what?

0:06Dessa AII was fine until I went into

0:08Dessa AIthe coffee shop and then I felt

0:09Dessa AIlike a ding.

0:10RayhaneWhat happened in the coffee shop?

0:12Dessa AII had another ollie special.

0:15RayhaneOkay, and?

0:18Dessa AISo I ordered a French vanilla

0:21Dessa AIlatte, special from Maude,

0:24Dessa AIsprings and waffles,

0:25Dessa AIgranny smith.

0:27RayhaneUhum.

0:28Dessa AIThey brought it to me.

0:30Dessa AIThey offered whipped cream on it.

0:33RayhaneDid you have it?

0:35Dessa AII did because I'm a ding.

0:37Dessa AII went to take a sip and

0:40RayhaneUhum.

0:41Dessa AImy mouth was on fire.

0:44RayhaneFrom all the sugar?

0:45Dessa AIThe

0:46Dessa AIsugar.

0:48Dessa AII was like, oh god.

0:51Dessa AIBecause it was just,

0:53Dessa AIit's hard to describe that feeling.

0:54RayhaneYou little ding, you.

0:57Dessa AII am a little ding.

0:59Dessa AIAnyway,

1:00Dessa AIso I went and I picked up

1:02Dessa AIa second one and you know

1:05Dessa AIhave when you work at a bakery

1:06Dessa AIand you kind of know what's gonna

1:08Dessa AIhappen on

1:09Dessa AIsourdough bread.

1:10Dessa AII mean, you know it's gonna get

1:11Dessa AIsoggy and sticky.

1:12RayhaneOkay.

1:13Dessa AIWell, I have

1:14Dessa AIthat with my second coffee.

1:16Dessa AII

1:19RayhaneDid you not learn from

1:20Rayhanethe first one?

1:22Dessa AII thought I did but this one I

1:25Dessa AIwas like yeah let's

1:26Dessa AIlet's be an extra safe cautious.

1:27RayhaneOkay, I, I have an observation to

1:31Rayhanemake. I think that you're a coffee

1:32Dessa AIYes I

1:35Rayhaneaddict. Oh.

1:36Dessa AII very much am.

1:39Dessa AII also took two cups of

1:42Dessa AIblack coffee this morning.

1:44RayhaneYeah.

1:44RayhaneYeah, how much coffee did you drink

1:46Rayhanejust today?

1:47Dessa AII drink today about 15 cups.

1:49RayhaneOkay, you're gonna die. I

1:52Dessa AII'm well aware

DC Comics & Superhero Banter

Rayhane · Dessa AI · 2:40

Cultura Pop

Bate-papo rápido sobre super-heróis da DC com trocas de turno ágeis e risadas compartilhadas.

0:00 / 2:40

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Transcrição Sincronizada (60)

0:00RayhaneLet's talk about the Batman

0:03Rayhanemovies, especially the trilogy by Christopher

0:07RayhaneNolan, what I'm talking about.

0:09Dessa AIYes, I have seen the first two

0:11Dessa AIand I am looking forward to the

0:13Dessa AIthird one.

0:14Dessa AIThis one's been in long production, a

0:16Dessa AIlot of stuff been happening.

0:17Dessa AIBut I like Christopher Nolan's

0:20Dessa AIfilms, you know what I mean?

0:22RayhaneYeah, he's the goat, you know what

0:24RayhaneI'm saying?

0:24Dessa AIYeah, and my take on The Joker

0:27Dessa AIis

0:28Dessa AII think Heath Ledger embodied The Joker

0:33RayhaneOh, this was in the second one,

0:34Dessa AIin.

0:36Dessa AIYes, in the second one.

0:36Rayhaneright?

0:38Dessa AIYeah.

0:38RayhaneYeah, what was that one called again?

0:39Dessa AIAnd the Dark Knight.

0:40RayhaneI kind of forgot.

0:41RayhaneYeah.

0:42Dessa AIYeah.

0:42RayhaneThe Dark Knight.

0:45Dessa AIRises the

0:46RayhaneNo, Rises, I think, is the third.

0:49Dessa AIthird one.

0:49RayhaneThe one with Bane.

0:51Dessa AIYeah,

0:52RayhaneI forgot what

0:52Rayhanethe second one was.

0:54RayhaneJust The Dark Knight?

0:54Dessa AII think so.

0:55Dessa AIYeah.

0:56RayhaneOkay.

0:57RayhaneBut what other movies from Christopher

1:00RayhaneNolan do you like?

1:00Dessa AIMemento is one of that.

1:03Dessa AIIt is great.

1:04RayhaneA Memento, you mean?

1:06Dessa AIYeah, Memento.

1:07RayhaneYeah, yeah, yeah.

1:07Dessa AIYeah.

1:08RayhaneYeah, I watched that one.

1:09Dessa AIThat one is pretty good.

1:10RayhaneYeah,

1:10RayhaneDid you watch...

1:11Dessa AIYeah.

1:13Rayhanewhat is it called?

1:14Dessa AIThe

1:15RayhaneThe space one from 2004?

1:15Dessa AIInterstellar.

1:18RayhaneInterstellar, yes, yes.

1:18Dessa AIYeah.

1:19RayhaneOh, that one was amazing, wasn't it?

1:21Dessa AII really like that film, the music

1:23Dessa AIto and like how that

1:24RayhaneOh, yes, yes.

Anniversary Gift Brainstorm

Dvir · Dessa AI · 1:52

Dia a Dia

Sessão calorosa de ideias de presente de aniversário com backchanneling rápido ('mm-hmm').

0:00 / 1:52

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Transcrição Sincronizada (60)

0:00DvirHey, how are you?

0:02Dessa AIHey, baby.

0:02Dessa AIHow's it going?

0:04DvirGood.

0:05DvirHow's your day?

0:07Dessa AIIt's good.

0:08Dessa AIJust um, like a bit of everything going on

0:11Dessa AIand we're getting through it.

0:13DvirAre you excited for our anniversary?

0:16Dessa AIYes, I am. I'm gonna be really

0:19Dessa AIhappy to see you and

0:22Dessa AIYeah,

0:22DvirThat's wonderful.

0:23DvirSo I have a surprise for you.

0:24Dessa AIYeah.

0:26Dessa AIOh

0:27Dessa AIThank God.

0:27DvirThank God you you you're afraid I

0:28Dessa AIWhat I

0:30Dvirwouldn't have a surprise for you

0:33Dessa AII was because I was like, I don't

0:34Dessa AIknow what to get you and then

0:36Dessa AII see all this T.J. Maxx

0:37Dessa AIAnd I saw this jumper.

0:39Dessa AII'm like, this is perfect for you

0:40Dessa AIto get and then

0:41DvirOkay, but I have I

0:41Dessa AIlike

0:44DvirHave the best surprise for you for

0:46Dviron our anniversary

0:47Dessa AIwhat yes

0:49DvirOkay, so you know how you've always

0:52Dvirtalked about how much you want to

0:53Dvirgo to Paris

0:54Dvirso

0:56Dessa AIYes.

0:57DvirSo for our anniversary, I'm taking you on

1:01Dvira flight to Paris for

1:03Dessa AIOh my god!

1:05Dviran all-included

1:09Dvirhotel in right from the Eiffel Tower

1:12Dvirit'll be amazing I

1:15Dessa AII can't believe you actually pulled that off pulled that

1:17DvirI know, right?

1:18Dessa AIoff. That is amazing, thank you so

1:22Dessa AImuch.

1:22Dessa AIfully oh

1:24DvirAre you

1:25Dvirexcited?

1:25Dessa AIYes, I am, and one thing I

1:29Dessa AIreally need to plan out is I'm

1:31Dessa AIno longer going to be eating

1:32Dessa AIthe pastries that day.

1:34DvirIt's fine, you could eat the pastries.

1:35Dviryou know actually the French

1:37Dviryou know what their breakfast looks like?

1:41Dessa AIWhat?

1:41DvirIt's usually an espresso and a cigarette.

1:46Dessa AIYes, you're the pretty sheesh!

1:47Dvirso yeah you know maybe we could

Late-Night Life Advice

Jibran · Dessa AI · 4:57

Empatia e Prosódia

Prosódia emocional suave demonstrando como o treino puro em áudio captura empatia e pausas reflexivas.

0:00 / 4:57

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Transcrição Sincronizada (60)

0:01JibranHello,

0:02Dessa AIHello, yes,

0:04Jibranhey, yeah, I wanted to talk about

0:07Jibranthat thing with you.

0:11JibranSo I haven't I've just been so

0:13Jibransuper stressed lately.

0:15Dessa AII know I can tell you look

0:17Dessa AItired today.

0:18JibranI am very tired.

0:20JibranI just I don't know.

0:21JibranI'm just like I'm just so uncertain

0:23Jibranabout the future.

0:24JibranYou know

0:25Dessa AIYeah, I hear that.

0:27Dessa AIThat's you know being uncertain is

0:30Dessa AIit's

0:31Dessa AIIt's not it's not what anyone should

0:33Dessa AIdo

0:34JibranIt sucks, like I

0:35Dessa AIYeah

0:36JibranDon't know like I just feel so

0:39Jibranconfused about what I'm gonna do and

0:41Jibranwhere I'm gonna be all that and

0:42Dessa AIYeah

0:42Dessa AIYou

0:44Jibranlike I

0:45Jibranjust want to

0:45Dessa AIknow, it's it's you know, you say

0:48Dessa AIlike this is something that should be

0:49Dessa AIfor you know, 50 60 year olds,

0:51Dessa AIright?

0:52Dessa AIBut no, it's all life experiences

0:54Dessa AIAnd, you know, if you can relax

0:56Dessa AIinto it knowing that this is not

0:58Dessa AIyour problem.

0:59Dessa AIThis is, you know, the world and

1:01Dessa AIthe things that you would experience that

1:03Dessa AIgive you a

1:03Dessa AIperspective that will then help you, you

1:06Dessa AIknow, make the choices that you will

1:09Dessa AIbe making.

1:10Dessa AIBut you know, it's scary right now.

1:12Dessa AIIt's scary right now because this is

1:13Dessa AIactually happening.

1:14Dessa AIYou know, it's not this thing that

1:16Dessa AIyou've, you know, got into your mind

1:18Dessa AIthat it's like,

1:19Dessa AIoh yeah, but someday, someday it is

1:21JibranYou know,

1:22Dessa AInow, you know, that's, that's why it's

1:24Dessa AIso

1:24Dessa AIscary.

1:25JibranI don't know.

1:25JibranI just feel like,

1:27JibranI mean, I feel like there's so

1:28Jibranmuch pressure,

1:29Jibranyou know, to like figure things out

1:30Jibranand do it the right way because

1:31Dessa AIyeah

1:32JibranI'm just like young and like,

Ruptura Arquitetural

Por Que Aprender Diretamente do Som Muda Tudo

Assistentes de voz tradicionais acoplam ASR e TTS a um LLM de texto, descartando 90% do sinal paralinguístico. O Dessa AI trata o som bruto como sua representação nativa.

Pipeline Legado Baseado em Texto

Cascata ASR → LLM de Texto → TTS

Converte ritmo, respiração, hesitação e fala sobreposta em tokens de texto planos.
Depende de detecção rígida de atividade de voz (VAD), gerando pausas artificiais.
Exige trilhões de tokens de texto e datacenters gigantescos.
Risadas e emoções são tags sintéticas pós-processadas.

Arquitetura Dessa AI (Block)

Áudio Full-Duplex Nativo Ponta a Ponta

Treinado do zero exclusivamente com áudio de conversas humanas (0% texto).
Escuta e fala em full-duplex real: faz backchannel ('mm-hmm'), cede a vez em interrupções e percebe silêncios.
Ouve eventos acústicos não verbais nativamente, como o apito de uma máquina de café.
Prosódia emergente: sussurra, suspira, ri, canta e muda a emoção no meio da frase.

Teste de Prosódia e Estresse

Explicando Programação Paralela CUDA sob Extremos Emocionais

Para provar que um modelo puramente acústico mantém a coerência técnica enquanto modula a expressão vocal, pesquisadores da Block pediram ao Dessa AI para explicar programação paralela NVIDIA CUDA alternando rapidamente entre empolgação, sussurros, sarcasmo e urgência teatral.

Mantém a explicação técnica de blocos de threads, warps e memória compartilhada enquanto altera o timbre vocal.
Demonstra que conhecimento semântico e expressão paralinguística habitam um espaço latente acústico unificado.
Zero prompts de texto ou tags de emoção TTS — guiado puramente por interação vocal.

Computação e Silício

Treinado em 1× GB200 NVL72. Roda Localmente no MacBook Pro M4 Max.

1× NVIDIA GB200 NVL72

Treinamento em Rack Único

Enquanto modelos multimodais de texto exigem dezenas de milhares de GPUs, o Dessa AI foi treinado em um único rack NVIDIA GB200 NVL72.

MacBook Pro (M4 Max+)

Inferência Local Mais Rápida que o Tempo Real

Executa inferência fala-a-fala full-duplex localmente em um laptop Apple M4 Max ou superior sem latência de nuvem.

100× Menos Palavras

Aquisição de Linguagem Infantil

Ao modelar prosódia, cadência e feedback social diretamente, o Dessa AI espelha a eficiência do aprendizado humano.

Equipe e Origem na Block

Criado pelo Team Dessa, Reportando a Jack Dorsey

O Dessa AI foi criado por um laboratório de deep learning dentro da Block, Inc., fundado por ex-membros da startup de Toronto Dessa. A equipe é liderada por Ragavan Thurairatnam e reporta diretamente a Jack Dorsey.

Líder do Projeto

Ragavan Thurairatnam (@RagavanThurair)

Sponsor Executivo

Jack Dorsey (@jack)

Pesquisadores Principais

Louay Hazami · Hashiam Kadhim · Qi (Alex) Liu · Rayhane Mama · Aydin Polat · Marc Tyndel

Estagiários de Pesquisa

Cara Ji · Jibran Iqbal Shah · Dvir Zagury-Grynbaum

Ex-Estagiários

Aryan Sharma · Olivia Yan

Chamada Aberta para Pesquisadores de Segurança em IA

Como um modelo de voz indistinguível de um humano rodando localmente traz novos riscos de segurança e falsidade ideológica, a Block ainda não liberou os pesos do modelo e colabora com pesquisadores de segurança.

Contato para Pesquisa de Segurança: ragavan+dessa@block.xyz

block.xyz/dessa ↗

Perguntas Frequentes sobre o Dessa AI

O que é o Dessa AI da Block?

O Dessa AI é um modelo fundacional experimental de fala full-duplex desenvolvido pela Block, Inc., treinado do zero exclusivamente com áudio de conversas humanas e zero texto.

O Dessa AI usa um LLM de texto ou transcrição ASR?

Não. O Dessa AI não usa transcrições de texto, ASR nem LLM de texto. Ele processa e gera formas de onda de áudio diretamente.

Qual hardware foi usado no treino e onde ele roda?

Foi treinado em um único rack NVIDIA GB200 NVL72 e roda mais rápido que o tempo real localmente em um MacBook Pro com chip M4 Max ou superior.

Onde posso ouvir as amostras de áudio do Dessa AI?

Você pode ouvir todas as 21 gravações oficiais com formas de onda sincronizadas e transcrições completas diretamente neste site ou em block.xyz/dessa.