🚀 LangYuan
🚀 LangYuan is a commercial use SOTA-level new generation of generalized real-time digital human system launched by LangQing Technology.
No training, no fine-tuning, no need to collect vast amounts of data. Simply upload a video of a person, and you can achieve:
Real-time voice conversation
Real-time lip-sync
Real-time emotional expression
Singing, dancing, outfit switching, and live performance
LangYuan currently achieves SOTA-level performance in the field of generalized real-time digital humans.
Video
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Project Page
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Code
📊 Project Poster
📊 Application Scenarios
📊 Technical Advantage
📊 Technical Solution
🎬 Demo
✨ Features
🎯 Zero-Training Digital Humans
Traditional digital human systems usually require:
- Large-scale data collection
- Hours or days of model training
- Heavy GPU dependency
- Per-character fine-tuning
LangYuan changes everything.
With LangYuan:
✅ Upload and use instantly
✅ Video-driven digital humans
✅ Single-image support
✅ No LoRA training
✅ No model fine-tuning
✅ No complex workflow
A truly:
“Training-Free Real-Time Digital Human System”
⚡ Ultra-Low Latency
LangYuan deeply optimizes the entire real-time pipeline.
End-to-End Pipeline Latency
| Module |
Latency |
| VAD Detection |
20~40ms |
| ASR Speech Recognition |
80~150ms |
| LLM Inference |
200~500ms |
| TTS Synthesis |
80~200ms |
| Digital Human Rendering |
100~300ms |
🧠 Total End-to-End Latency
about 1 second
Supports:
- Real-time interruption
- Wake-word interruption
- Streaming speech generation
- Streaming lip-sync
- Instant emotional feedback
- Natural conversational interaction
LangYuan is far beyond a simple talking head.
Supports:
- 🎤 Singing
- 💃 Dancing
- 👗 Real-time outfit switching
- 🎬 Performance animation
- 😊 Emotional expressions
- 👄 High-precision lip-sync
- 🦷 Teeth detail restoration the similarity is over 92%.
- 👁 Micro-expression animation
🌍 Generalized Character Support
👩 Human Digital Humans
- Real-person video driving
- Photo-driven avatars
🤖 Virtual Characters
- Anime characters
- VTubers
- Stylized AI characters
🐼 Animal Digital Humans
- Panda avatars
- Tigers
- Pets
- Brand mascots
🧩 Multi-Representation Support
| Type |
Support |
| 2D |
✅ |
| 2.5D |
✅ |
| 3D |
✅ |
| Live2D |
✅ |
| Video-driven |
✅ |
| Audio-driven |
✅ |
LangYuan supports deployment across multiple devices and environments:
- 📱 Mobile phones
- 💻 PCs
- 🖥 Large displays
- 🧊 Holographic chambers
- 🪟 Transparent mobile displays
- 🤖 Robots
- 📺 Smart displays
- 🏢 Exhibition systems
☁️ Deployment Options
Supported Deployment Modes
- Local deployment
- Private on-premise deployment
- Cloud deployment
- Edge deployment
- China-compatible XinChuang deployment
🧠 AI Integration
LangYuan can seamlessly integrate with:
- DeepSeek
- Qwen
- ChatGLM
- Llama
- OpenAI
- Claude
- Gemini
- Agent
- OpenClaw
- Hermes
Supports:
- Function Calling
- MCP
- AI Agents
- RAG
- Workflow systems
- Knowledge bases
🔊 Voice Intelligence
Built-in Features
- Real-time ASR
- Real-time TTS
- VAD
- Interruption detection
- Echo cancellation
- Noise reduction
- Emotional speech synthesis
- Multi-voice cloning
📈 Technical Specifications
| Metric |
LangYuan |
| Real-Time Latency |
≈1s |
| Concurrency |
High Concurrency |
| GPU Support |
NVIDIA / Huawei Ascend |
| Resolution |
HD |
| Real-Time Rendering |
✅ |
| Training Required |
❌ No |
| Generalization Capability |
Extremely Strong |
🏆 Advantages
✅ Truly Generalized
No per-character training required.
✅ Truly Real-Time
Near human-level conversational responsiveness.
✅ Truly Easy-to-Use
Upload a video and start instantly.
✅ Truly Enterprise-Ready
Supports private deployment, localization, and enterprise infrastructure.
✅ Truly Multi-Scenario
Customer service, livestreaming, education, robotics, exhibitions, and more.
📦 Application Scenarios
- AI Customer Service
- AI Livestream Hosts
- AI Sales Assistants
- AI Tour Guides
- AI Teachers
- AI Companions
- AI Influencers
- AI Virtual IPs
- AI Receptionists
- AI Exhibition Hosts
📖 Disclaimers
This repositories made by langzizhixin from Langzizhixin Technology company 2026.5.13, in Chengdu, China .
For business cooperation, please contact us by email [email protected], or add ours WeChat for communication: langzizhixinkeji
📱 商务合作请加微信联系
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