Google 发布 Gemini 3.8 Live Avatar:打造实时对话的数字人
它能同时听语音、看画面,并用同步的声音和动态形象回应;后台工具调用让接待、导览等对话持续进行。
Google 发布的 Gemini 3.8 Live Avatar,是一种能在对话中看、听、说的动态数字人能力。它把实时语音对话与低延迟视频结合起来,让头像的声音、口型和表情跟着交流变化;遇到查询或业务请求时,还能在后台调用工具。接待、导览和客服因此有了一个可以持续交谈的可视化入口。
核心技术升级了什么
Google 将这次升级描述为把实时对话能力与流式视频原生结合。系统同时接收声音和画面,再持续输出语音与动态形象;嘴型、表情和说话节奏随回答变化。这一升级的关键是让动态形象跟上用户的实时提问、展示物品和话题转换,保持自然的对话节奏。
另一项升级是异步工具调用。AI 可以在对话过程中发起外部查询或操作,并在等待结果时继续与用户交流。它改变的是前台体验:查房态、取订单信息一类请求不必让头像停住等候。但业务结果仍由企业接入的系统返回,视频中的对话流畅不能代替实际执行成功的回执。
主要功能特点
- 边听边看,结合现场回答 用户可以说话,也可以把物品或环境展示给摄像头;AI 将语音问题和视觉线索放在一起理解,再用带表情的声音与视频回应。
- 边聊边调用工具。 工具请求可在后台运行,适合把问答接到接待、查询等服务流程。具体能办什么事,取决于企业接入哪些接口、赋予哪些权限。
- 跨语言保持形象同步。 Google 称 Live Avatar 能在 97 种语言之间切换,并让口型和表情跟随语音变化、保持视频稳定。这是官方能力声明;目标语言的实际效果仍需在具体场景中测试。
- 使用预设形象或品牌形象。 企业可选用角色库,也可用高质量参考图定制动态形象。自定义形象目前有企业白名单条件。
四段官方演示说明了什么
看见画面里没被问到的风险。 用户把布偶猫 Kai 抱到镜头前,问怎样让它在办公室待得舒服。头像先给出猫窝和休息建议,随后注意到桌上的绿萝,提醒用户把植物移到猫够不到的地方。这段演示说明视觉输入的价值:回答可以参考问题之外的环境线索;它不等于对识别准确率的独立测试。
对话和业务请求同时推进。 酒店演示中,虚拟前台与客人谈提前入住,随后说已免费升级房型、房号是 509,数字钥匙已送到手机;客人接着要芝士汉堡,画面又出现餐饮请求。它展示的是异步调用下的连续交流,视频本身无法证明这些操作接入了真实酒店系统,也不能把免费升房当成产品默认政策。
切换语言时继续对话。 旅行日语练习中,用户用英语提问,头像教他用日语问“这个多少钱”,听到发音偏差后再用英语解释并示范。视频具体呈现的是英语与日语之间的切换。
选择角色外观。 最后一段展示多种外观、声音和表情的预设头像,帮助企业判断可视形象的风格范围;视频没有演示用参考图制作自定义头像的过程。
现在适合用在哪里
Live Avatar 已面向 Gemini Enterprise 企业客户开放,开发者可通过 Gemini Live API 接入。当前更适合短时、需要视听反馈的接待、导览与客服对话。Google DeepMind 模型卡写明连续交互可支持“几分钟”,而非数小时;偶发变慢、超时和回答错误仍是已知限制。
企业若要把它用于实际服务,需要确认目标语言与延迟、工具权限和业务回执。自定义头像须进入企业白名单;Google 表示生成的音视频带有 SynthID 隐形水印,用来帮助识别 AI 生成内容。水印提供识别线索,实际部署仍需要核验每项业务操作的结果。
Google 发布 Gemini 3.8 Live Avatar:打造实时对话的数字人
Google 发布的 Gemini 3.8 Live Avatar 是一套能够在对话中同时看、听、说的动态数字人能力。Google 将实时对话与低延迟流式视频原生结合;异步工具调用让查询与交流可以并行。
Google 介绍了两项相互配合的能力:画面和语音随对话持续更新;查询或操作在后台执行时,前台仍可交流。
系统结合语音与摄像头画面理解现场,再持续输出语音和动态形象;口型与表情随回答变化。
AI 可在后台发起外部查询或操作,并在等待结果时继续对话;实际业务是否办成仍要看系统回执。
通过将实时感知与业务能力嵌入流式视频,数字人从单纯的“信息播报员”转型为具备环境理解力与办事能力的业务前台。
用户将猫抱到镜头前询问照顾建议,AI 不仅解答猫的休息需求,还主动注意到桌上未被提及的绿萝,提醒移开有毒植物。
酒店演示把提前入住、升房、数字钥匙和点餐串成一次对话;视频不能证明操作已接入真实酒店系统。
在日语练习演示中,头像使用英语拆解句意与发音要点,引导用户日语跟读,并在识别发音偏差后自如切回英语辅导。
官方演示了不同外观与风格的预设形象;自定义形象需进入企业白名单。
技术升级显著改善了感官交互,但企业要将其投入实际生产系统,必须清醒区分“演示效果”与“工程边界”。
- 口头流畅不等于业务执行:视频中头像承诺“已为您免费升房”,仅是前台会话表达;真实的房态、钥匙和餐饮请求要以对应业务系统回执核验。
- 会话时长受模型卡约束:Google DeepMind 模型卡明确指出连续交互可支持“几分钟”而非数小时;偶发变慢、超时和回答错误仍是模型卡列出的限制。
- 可信溯源与品牌合规:Google 称生成的音视频带有 SynthID 隐形水印,帮助识别 AI 内容;自定义形象需企业白名单。
Introducing Gemini 3.8 Live with Live Avatar
Introducing Gemini 3.8 Live with Live Avatar, which brings near real-time visual presence to Gemini’s conversational AI.
Sep 24, 2026
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Gemini 3.8 Live with Live Avatar brings real-time visual presence to Gemini’s conversational AI. By natively coupling our live dialogue capabilities with low-latency streaming video, Live Avatar enables a more natural and intuitive conversational experience for enterprises and their users.
Shuo-yiin Chang
Research Scientist
CJ Zheng
Software Engineer, on behalf of the Gemini Audio Team

Building on the momentum of last week'sGemini 3.8 Live launch, today we are excited to introduce Gemini 3.8 Live with Live Avatar — bringing near real-time visual presence to our native live dialogue models. By pairing near real-time video generation with speech, the Live Avatar feature creates an experience that listens, sees, and speaks with a dynamic visual persona.
With precise lip-syncing, natural expressions, and fluid turn-taking, Live Avatar enables enterprises to expand their virtual offerings more interactively. Whether providing engaging customer service or delivering interactive walkthroughs, it transforms digital exchanges into richer, more accessible experiences.
Starting today, Gemini 3.8 Live with Live Avatar is available in Gemini Enterprise.
See how Gemini 3.8 Live with Live Avatar supports a wide range of characters, each with a distinct look, voice, and expressive presence.
More natural and multimodal conversations
Conversation is inherently multimodal: we listen, look, speak, and use facial expressions to communicate. Live Avatar brings these capabilities to enterprise agents. By processing visual and audio inputs simultaneously, it generates enriching conversations for a more comprehensive experience.
Watch how Gemini 3.8 Live with Live Avatar takes in what it sees and hears in near real time, responding with expressive audio and video for a more natural conversation.
Asynchronous tool execution with continuous presence
Beyond visual presence, the feature is backed by Gemini’s advanced reasoning. With asynchronous tool calling, Live Avatar can trigger tool calls and fetch data in the background while continuing active dialogue, handling complex tasks while ensuring an uninterrupted conversational flow.
See how Gemini 3.8 Live with Live Avatar handles complex tasks like checking in a guest at a hotel. Calling tools in the background while the dialogue continues uninterrupted.
Conversational experiences built for global scale
Conversational presence should feel natural and not be limited by languages. Live Avatar features native multilingual speech-to-speech synchronization. The feature dynamically adapts its lip-sync and expressions and can seamlessly transition across 97 languages without degrading video fidelity or introducing visual drift.
Watch how Gemini 3.8 Live Avatar switches between languages mid-conversation, with lip-sync and expressions adapting seamlessly across 97 languages.
A Live Avatar to fit your brand needs
Organizations often need distinct visual identities to fit their brand. In addition to a library of diverse, preset avatars, organizations can customize their Live Avatars. From a high-quality reference image, developers can generate a fully animated, responsive avatar while preserving reference likeness, brand styling, or character identity. Custom avatar creation is currently available only through enterprise allowlisting.
Trust and transparency at its core
We built Live Avatar with strict safeguards designed to respect identity, and keep AI-generated content transparent. All output generated by our AI products is watermarked withSynthID. This imperceptible watermark is woven directly into the audio and video output, helping to ensure AI-generated content remains detectable to help minimise misinformation and misattribution. To explore our comprehensive approach to safety and responsible deployment, read our model card.
Get started with Gemini 3.8 Live with Live Avatar
Gemini 3.8 Live with Live Avatar is available in Gemini Enterprise. Explore the API documentation to get started.