Description
Hy4 Preview is a cutting-edge Mixture-of-Experts (MoE) model developed by the Tencent Hy Team. It boasts a total of 770 billion parameters, with 49 billion activated per token. The model's architecture consists of 78 layers, utilizing a combination of dense FFN and MoE layers, each containing 256 routed experts and one shared expert. This design allows for the activation of the top-8 routed experts per token, enhancing its processing capabilities.
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The model employs Gated DeepSeek Sparse Attention (Gated DSA) with IndexCache for efficient cross-layer sparse index reuse. Its residual pathway uses identity Hyper-Connections (iHC) to improve inter-layer information flow. Hy4 Preview is scaled in terms of model size, context length, and training data, making it a leader in open-source AI models.
Hy4 Preview is designed to excel in various domains, including software engineering, where it aids in understanding, planning, debugging, and verifying long-horizon tasks. In game development, it can transform a single prompt into a playable prototype, working seamlessly with game engines. For office and analysis tasks, it converts messy context into shareable artifacts like documents and spreadsheets. In scientific research, it offers strong reasoning and problem-solving capabilities.
The model is open-source and available on platforms like Hugging Face, ModelScope, GitCode, and CNB. It supports deployment with vLLM or SGLang and offers a comprehensive model finetuning pipeline. Hy4 Preview is released under the Apache License 2.0, ensuring its accessibility and adaptability for various applications.
- CategoryAI Models & LLMs
- Pricing ModelOpen source
- DeploymentCloud
- PlatformsWeb
Hy4 Preview Highlights
Mixture-of-Experts Architecture
770 Billion Parameters
Gated DeepSeek Sparse Attention
Identity Hyper-Connections
Open Source
Fine-tuning Support
Speculative Decoding
Available on Hugging Face
Getting Started with Hy4 Preview
Access model page: Visit the official Hugging Face page
Authenticate: Log in or create an account
Configure: Set up model parameters and environment
Send prompts: Interact with the model using API calls
Fine-tune: Customize the model for specific tasks
Hy4 Preview's Use Cases
- Software Engineering
- Game Development
- Office Analysis
- Scientific Research
- AI Research












