Hy4

Hy4

Tencent
LongCat-2.0

LongCat-2.0

LongCat
+
+

Related Products

  • LM-Kit.NET
    29 Ratings
    Visit Website
  • Checksum.ai
    1 Rating
    Visit Website
  • QuantaStor
    6 Ratings
    Visit Website
  • Lockbox LIMS
    72 Ratings
    Visit Website
  • Bitdefender Ultimate Small Business Security
    5 Ratings
    Visit Website
  • AddSearch
    140 Ratings
    Visit Website
  • Pipefy
    592 Ratings
    Visit Website
  • Visual Planning
    117 Ratings
    Visit Website
  • Dialpad Support
    1,600 Ratings
    Visit Website
  • Orca Security
    606 Ratings
    Visit Website

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.

About

LongCat-2.0 is a 1.6 trillion total-parameter Mixture-of-Experts language model built on AI ASIC superpods, with about 48 billion parameters activated per token and strong performance across coding and agentic tasks. It is a substantial step up from previous LongCat models, combining large-scale sparse architecture with dedicated post-training for real-world software engineering, tool use, long-context reasoning, and multi-step agent workflows. LongCat-2.0 is trained and deployed entirely on AI ASIC superpods, with pretraining spanning more than 35 trillion tokens and millions of accelerator-hours, demonstrating frontier-scale training on alternative hardware platforms. To strengthen long-horizon tasks, the model introduces LongCat Sparse Attention and is trained on hundreds of billions of tokens of 1M-context data, giving it native support for ultra-long context tasks and reliable long-document understanding.

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

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

Audience

Developers and AI teams seeking a high-performance agentic model for coding, tool use, multi-step reasoning, and long-context workflows

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

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

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

Review this Software

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

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

Company Information

LongCat
Founded: 2023
China
longcat.chat/blog/longcat-2.0/

Alternatives

Grok 4.6

Grok 4.6

SpaceXAI

Alternatives

Claude Sonnet 5

Claude Sonnet 5

Anthropic
Claude Opus 5

Claude Opus 5

Anthropic
GLM-5.2

GLM-5.2

Z.ai
Claude Fable 5

Claude Fable 5

Anthropic
Claude Opus 4.8

Claude Opus 4.8

Anthropic
GLM-5

GLM-5

Z.ai

Categories

Categories

Integrations

Claude Code
Hermes Agent
OpenClaw
Tencent Hy

Integrations

Claude Code
Hermes Agent
OpenClaw
Tencent Hy
Claim Hy4 and update features and information
Claim Hy4 and update features and information
Claim LongCat-2.0 and update features and information
Claim LongCat-2.0 and update features and information