3 Jul 202423:37

TLDRKyutai's new 'VOICE AI' has stunned the industry with its ability to express over 70 emotions and various speaking styles, including singing and whispering. The model, which can impersonate characters like a pirate or speak with a French accent, excels in real-time conversations and overcomes traditional voice AI limitations with innovative methods. Moshi, the AI, demonstrates multimodal capabilities, generating text and audio simultaneously, and is designed for on-device use, ensuring privacy. The model's safety features, such as audio signature verification, address potential misuse, marking a new era in AI interaction.


  • 😲 Kyutai's new 'VOICE AI' has shocked the industry by surpassing GPT4 in real-time conversation capabilities.
  • 🗣️ The AI can express over 70 emotions and mimic various speaking styles, including whispering, singing, and even impersonating a pirate or speaking with a French accent.
  • 🎭 The model's breakthroughs and demos showcase its lifelike emotive responses and incredible speed, indicating a significant leap in AI conversational abilities.
  • 🔮 The AI's multimodality allows it to listen, generate audio, and 'think' in text form, enhancing the naturalness and efficiency of interactions.
  • 🔄 Moshi, the AI model, is designed to be multistream, enabling it to speak and listen simultaneously, akin to natural human conversation.
  • 🌐 Despite the impressive capabilities, the model faces limitations such as latency and loss of non-textual communication elements.
  • 🤖 The AI's training involved innovative methods, merging complex pipelines into a single deep neural network, and using annotated speech to teach it about human-like speech patterns.
  • 🎙️ Moshi's text-to-speech engine supports over 70 different emotions and speaking styles, showcasing the depth of its expressive capabilities.
  • 📈 The model's size is relatively small, making it feasible to run on devices, addressing privacy concerns and paving the way for on-device AI applications.
  • 🔒 The developers prioritize AI safety, implementing strategies to identify Moshi-generated content and prevent misuse, such as watermarking and signature databases.
  • 🌐 Moshi's ability to access and manipulate its parameters through a user interface highlights the adaptability and personalization potential of AI models.

Q & A

  • What is the new 'VOICE AI' model by Kyutai that has shocked the industry?

    -The new 'VOICE AI' model by Kyutai is a state-of-the-art model that excels in real-time conversations and has a wide range of capabilities, including expressing more than 70 emotions and speaking styles, which has surprised the industry.

  • How does the Kyutai model demonstrate its ability to express emotions and speaking styles?

    -The Kyutai model demonstrates its ability by performing tasks such as speaking with a French accent, impersonating a pirate, whispering, and even singing, showcasing its versatility in emotional expression and speech styles.

  • What are the current limitations of voice AI that Kyutai had to overcome?

    -The current limitations of voice AI include latency issues due to complex pipelines and the loss of non-textual information. Kyutai addressed these by merging separate blocks into a single deep neural network and developing an audio language model.

  • How does the Kyutai model differ from traditional text models in machine learning?

    -The Kyutai model differs by using annotated speech instead of text, compressing it into pseudo words that a language model can learn from, allowing it to understand and predict speech segments much like a text model learns from text.

  • What is the significance of Moshi's multimodality and multistream capabilities?

    -Moshi's multimodality allows it to listen and generate audio while also having textual thoughts, enhancing the naturalness of interaction. Its multistream capability enables it to speak and listen simultaneously, mimicking real human conversations with overlaps and interruptions.

  • How does the Kyutai model ensure the safety and ethical use of its AI technology?

    -The model uses strategies such as tracking generated audio with signatures and watermarking to ensure that it can be identified as AI-generated content, preventing misuse for malicious activities like phishing campaigns.

  • What is the role of the text-to-speech engine in the Kyutai model?

    -The text-to-speech engine in the Kyutai model supports over 70 different emotions and speaking styles, allowing it to generate highly expressive and varied audio responses, enhancing the realism of the conversation.

  • How was the Kyutai model trained to handle conversations?

    -The model was trained using a combination of synthetic dialogues and real conversations, fine-tuning it to generate oral style transcripts and responses that are realistic and contextually appropriate.

  • What is the potential impact of the Kyutai model on future AI interactions?

    -The Kyutai model is expected to change the way people interact with AI systems, providing more natural, real-time, and emotionally rich conversations, making AI systems more integrated into daily life.

  • Can the Kyutai model run on-device, and what are the implications for privacy?

    -Yes, the Kyutai model can run on-device, which is significant for privacy as it allows AI interactions without the need to send data to the cloud, reducing privacy concerns.

  • What is the future direction for the Kyutai model in terms of accessibility and device compatibility?

    -The future direction includes making the model available on the web and mobile phones with a more compressed model, ensuring wider accessibility and convenience for users.



🤖 Advanced AI Emotional Expression and Real-time Conversations

The script introduces an AI model capable of expressing over 70 emotions and various speaking styles, including whispering, singing, and mimicking accents. It discusses CAAI's breakthrough in real-time conversational AI that has astounded the industry. The model's ability to convey emotions and respond in different styles is demonstrated through a series of interactive demos, including speaking with a French accent, as a pirate, and whispering a mystery story. The script also addresses the limitations of current voice AI, such as latency and loss of non-textual information, and how CAAI's innovative approach aims to overcome these challenges by integrating a complex pipeline into a single deep neural network.


📚 Background on Text Models and the Innovation of Audio Language Models

This paragraph delves into the background of how text models are trained using large neural networks to predict the next word in a sentence. It contrasts this with the development of an audio language model that learns from annotated speech, compressing it into pseudo words for training. The model's ability to understand and mimic the nuances of speech, such as hesitations and interruptions, is illustrated with a voice snippet in French. The paragraph also highlights the model's progress towards becoming a conversational AI, discussing breakthroughs made in a short span of six months by a small team, focusing on multimodality and the integration of textual thoughts with audio responses to enhance training and provide better answers.


🔄 Multistream Audio and Adaptability of AI Frameworks

The script explains the concept of multistream audio, which allows the AI to both speak and listen simultaneously, enhancing the naturalness of conversation by enabling interruptions similar to human interactions. It discusses the adaptability of the AI framework to various tasks and use cases, exemplified by training the AI on the Fisher dataset, which involves participants discussing various topics. The AI's ability to engage in a conversation with a participant from the past is demonstrated, showcasing its capacity for understanding and responding to a wide range of subjects. The paragraph also touches on the AI's text-to-speech engine, which supports over 70 emotions and speaking styles, and the training process involving synthetic dialogues to mimic realistic conversations.


🎙️ Training the AI with Synthetic Dialogues and Voice Consistency

This section describes the process of training the AI using synthetic dialogues to generate oral style transcripts and the subsequent training of the AI on these transcripts with a text-to-speech engine. The importance of giving the AI a consistent voice is emphasized, with the involvement of a voice artist, Alice, who recorded various monologues and dialogues to train the text-to-speech engine. The script also discusses the size of the AI model and its potential to run on-device for privacy concerns, demonstrating a live example of the AI running on a MacBook Pro without an internet connection and interacting with the audience.


🛡️ AI Safety and Open-Source Release

The final paragraph addresses AI safety, discussing strategies to identify AI-generated audio to prevent misuse, such as tracking generated content and watermarking. The script mentions the open-source release of the AI model, allowing users to run it on their devices with a good microphone for clear communication. It also touches on the AI's ability to recognize when professional help might be needed and the importance of seeking such help when necessary. The conversation concludes with reflections on the potential of the AI model to revolutionize AI interactions and its current availability on the web.




Voice AI refers to artificial intelligence systems that can process and generate human-like speech. In the video, the term is used to describe the advanced capabilities of Kyutai's new model, which can express a wide range of emotions and speaking styles, making it a significant breakthrough in the industry.

💡Realtime Conversations

Realtime Conversations imply the ability of an AI to interact with users in real time, responding quickly and naturally to inputs. The video emphasizes Kyutai's model's proficiency in this area, showcasing its state-of-the-art performance in real-time interactions.


Emotions in the context of the video relate to the AI's capacity to convey and express feelings through its voice. The script mentions that the AI can express more than 70 emotions, enhancing the naturalness and human-like quality of its interactions.

💡Speaking Styles

Speaking Styles refer to the various ways in which speech can be delivered, such as whispering, singing, or using a specific accent. The AI demonstrated in the video is capable of adopting different speaking styles, including a French accent and a pirate's speech, to make the conversation more engaging.

💡Multimodal Model

A Multimodal Model is an AI system that can process and generate multiple types of data, such as text, audio, and visual information. The video discusses how Kyutai's model is multimodal, capable of listening, generating audio, and 'thinking' in text form, which contributes to its realistic interaction capabilities.

💡Text-to-Speech Engine

A Text-to-Speech Engine converts written text into spoken words. The video highlights that Kyutai's AI has a text-to-speech engine that supports over 70 different emotions and speaking styles, allowing it to produce highly expressive and varied speech outputs.

💡Synthetic Dialogues

Synthetic Dialogues are artificially created conversations used to train AI systems. The script explains that Kyutai's team used synthetic dialogues to fine-tune their model, enabling it to learn how to engage in natural-sounding conversations.


On-Device refers to the capability of running an AI model directly on a user's device, such as a smartphone or laptop, rather than relying on cloud computing. The video demonstrates Kyutai's model running on a MacBook Pro, emphasizing the potential for privacy and convenience.

💡AI Safety

AI Safety involves measures to prevent misuse of AI technologies, such as generating deceptive audio. The video discusses strategies for ensuring the safety of Kyutai's AI, including tracking generated audio and watermarking to identify AI-generated content.

💡Large Scale Multimodal AI Model

A Large Scale Multimodal AI Model, as mentioned in the script, is a sophisticated AI system with a vast number of parameters that allow it to process and analyze various data types. The video's AI, developed by qai, is an example of such a model, designed to understand and respond to a wide range of information.


Kyutai's new 'VOICE AI' has shocked the industry by outperforming GPT4o with its advanced real-time conversation capabilities.

The AI can express over 70 emotions and imitate various speaking styles, including whispering and singing.

The AI can impersonate different characters, such as a pirate or someone with a French accent, for a more engaging interaction.

The model demonstrates state-of-the-art responses and real-time interaction, changing the landscape of AI communication.

Moshi, the voice model, is capable of lifelike emoting and responding in various ways, showcasing its versatility.

A demo showcases Moshi's ability to speak with a French accent and tell a poem about Paris, highlighting its linguistic capabilities.

The AI can also adopt a pirate's persona, narrating adventures on the seven seas, demonstrating character imitation.

Moshi's multimodality allows it to listen, generate audio, and 'think' with textual thoughts shown on screen.

The AI's multistream capability enables it to speak and listen simultaneously, mimicking natural human conversation.

Moshi is not just a conversational model but a framework adaptable to various tasks and use cases.

The AI has been trained on the Fisher dataset, engaging in discussions as if making a phone call to the past.

Moshi features a text-to-speech engine with over 70 different emotions, showcasing its expressive range.

The model was trained using a mix of text and audio data, along with synthetic dialogues for realistic conversation.

Moshi's voice is consistent across interactions, achieved through recordings by a professional voice artist named Alice.

The model is relatively small and can run on-device, addressing privacy concerns by processing data locally.

An on-device demo shows Moshi functioning without an internet connection, emphasizing its offline capabilities.

The AI safety aspect is considered, with strategies to identify Moshi-generated content and prevent misuse.

The conversation with Moshi reveals its ability to understand context, manipulate its parameters, and express personality.

Moshi's creators are committed to open-source release, allowing the model to be run on personal devices.

The AI is positioned as a new era in AI interaction, offering quick responses and lifelike conversations.