Hy4

Hy4

Tencent
+
+

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About

Chat Stream provides access to two powerful language models from DeepSeek: Model Capabilities Utilizes DeepSeek V3 and R1 models with 671B parameters (37B activated per token) Achieves exceptional benchmark scores: MMLU (87.1%), BBH (87.5%) Features 128K context window length Supports code generation, mathematical computation, and multilingual processing Technical Features Advanced MoE (Mixture-of-Experts) architecture Multi-head Latent Attention (MLA) Auxiliary-loss-free load balancing Multi-token prediction objective Deployment Options Web-based chat interface with instant access One-click website integration via iframe Mobile apps for iOS and Android platforms Compatible with NVIDIA, AMD GPUs, and Huawei Ascend NPUs Supports both local inference and cloud deployment Access Methods Free chat access without registration Website embedding capabilities Mobile applications Premium subscription for ad-free experience

About

Hy4 preview is a new-generation open source Mixture-of-Experts flagship model built for real-world productivity tasks across software engineering, office work, game development, and scientific research. The model contains 770B total parameters with 49B activated per token and supports a 1M-token context window, giving it the capacity to work through large codebases, extensive document collections, and long multi-step tasks. Its 78-layer architecture combines Gated DeepSeek Sparse Attention with IndexCache for cross-layer sparse index reuse and identity Hyper-Connections to expand information flow between layers. A native Multi-Token Prediction layer is included for speculative decoding. Hy4 preview is designed to understand, plan, debug, and verify long-horizon engineering tasks, with additional gains in front-end visual quality and interaction design.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Users that want a platform to use DeepSeek AI models

Audience

Developers, researchers, and technical professionals seeking an AI model for coding, document work, game development, scientific reasoning, and complex productivity tasks

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Chat Stream
Founded: 2023
Hong Kong
www.chatstream.org

Company Information

Tencent
Founded: 1998
China
hy.tencent.ai/research/hy4-preview

Alternatives

DeepSeek-V2

DeepSeek-V2

DeepSeek

Alternatives

Qwen2.5-Max

Qwen2.5-Max

Alibaba
GPT-5.6 Sol

GPT-5.6 Sol

OpenAI
DeepSeek R1

DeepSeek R1

DeepSeek
Grok 4.6

Grok 4.6

SpaceXAI
DeepSeek R2

DeepSeek R2

DeepSeek
Hy4

Hy4

Tencent

Categories

Categories

Integrations

DeepSeek R1
DeepSeek-V3
Tencent Hy

Integrations

DeepSeek R1
DeepSeek-V3
Tencent Hy
Claim Chat Stream and update features and information
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