Hy4

Hy4

Tencent
+
+

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About

DeepSeek-V4.1-Flash is a fast, versatile AI model designed for demanding coding, agentic, creative, and spatial reasoning workloads. Building on DeepSeek-V4-Flash, it emphasizes high-speed generation while maintaining strong performance on complex tasks, reaching more than 400 tokens per second and peaking at around 427 tokens per second in reported tests. The model can tackle advanced programming challenges, generate interactive 3D environments, create voxel-based designs, and reason about spatially complex scenes and simulations. Demonstrations include Minecraft-style worlds, classical Chinese gardens, racing environments, dungeon navigation, exploded camera views, and other applications requiring both code generation and an understanding of spatial relationships. Its capabilities make it suitable for rapid prototyping, game development, 3D workflows, architecture, research, and other technical or creative projects where iteration speed matters.

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

Developers, AI engineers, researchers, creators, and professionals wanting a high-speed model for coding, agentic workflows, spatial reasoning, simulations, and interactive content generation

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

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5

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

Pros & Cons from Real Users

Pros

  • The appeal is obvious for developers: fast generation, lower cost, and enough capability to handle real coding-agent tasks instead of only lightweight chat. If V4.1 Flash really improves speed and cost while keeping or beating V4-Pro-level performance, it could be one of the best everyday models for repo work, debugging, automation, and AI coding tools.

Cons

  • No cons to speak of as of yet. Super close to frontier at cheap prices

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

DeepSeek
Founded: 2023
China
deepseek.com

Company Information

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

Alternatives

Alternatives

Grok 4.6

Grok 4.6

SpaceXAI
GPT-5.6 Sol

GPT-5.6 Sol

OpenAI
DeepSeek-V4

DeepSeek-V4

DeepSeek

Categories

Categories

Integrations

Buda
Cheaper Inference
Cline
ClinePass
DeepSeek
DeepSeek Harness
DeepSeek-V4
Novita AI
OpenClaw
OpenTag
Oxlo.ai
Reasonix
SnapVee Studio
Tencent Hy
Together AI
Vercel AI Gateway
ZooClaw

Integrations

Buda
Cheaper Inference
Cline
ClinePass
DeepSeek
DeepSeek Harness
DeepSeek-V4
Novita AI
OpenClaw
OpenTag
Oxlo.ai
Reasonix
SnapVee Studio
Tencent Hy
Together AI
Vercel AI Gateway
ZooClaw
Claim DeepSeek -V4.1-Flash and update features and information
Claim DeepSeek -V4.1-Flash and update features and information
Claim Hy4 and update features and information
Claim Hy4 and update features and information