Hy4

Hy4

Tencent
Hy4 Muse Ember

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Hy4:

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.
Muse Ember:

About

Muse Ember is an efficient multimodal AI model developed by Meta for autonomous agents, software engineering, complex reasoning, and high-volume task automation. The model specializes in repetitive agentic operations such as tool calling, code analysis, information extraction, workflow routing, and document processing. It supports text, images, audio, video, and PDF inputs with a one-million-token context window and a maximum output length of 512,000 tokens. Muse Ember can execute multistep business workflows, analyze large software repositories, perform coding tasks, and interpret visual information from documents and screenshots. Its cost-efficient architecture makes it suitable for multi-agent systems in which larger models handle planning while Muse Ember executes frequent subtasks. The model is available through Meta Model API and Muse Code, with API pricing starting at $0.10 per million input tokens and $0.50 per million output tokens.
Hy4:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
Muse Ember:

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
Hy4:

Audience

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

Audience

AI developers, autonomous agent developers, software engineers, machine learning engineers, enterprise automation teams, data engineers, AI infrastructure providers, coding assistant developers, business process automation specialists, and organizations seeking cost-efficient multimodal AI, long-context reasoning, automated tool execution, document processing, software engineering assistance, and scalable multi-agent workflows
Hy4:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
Muse Ember:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported
Hy4:

API

Offers API Supported
Muse Ember:

API

Offers API Supported
Hy4:

Screenshots and Videos

Muse Ember:

Screenshots and Videos

Hy4:

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported
Muse Ember:

Pricing

$0.10 per 1M tokens (input)
$0.10 per million input tokens and $0.50 per million output tokens
Free Version Not Supported
Free Trial Not Supported
Hy4:

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
Muse Ember:

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
Hy4:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
Muse Ember:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
Hy4:

Company Information

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

Company Information

Meta
Founded: 2004
United States
research.meta.ai/blog/muse-ember
Hy4:

Alternatives

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Muse Ember:

Alternatives

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Hy4:
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Muse Ember:
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Hy4:
Muse Ember:
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Muse Ember:
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Hy4:
Qwen3.5

Qwen3.5

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Muse Ember:
Muse Wonder Full

Muse Wonder Full

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Hy4:

Categories

AI Coding Models Supported
AI Models Supported
Foundation Models Supported
Muse Ember:

Categories

AI Coding Models Supported
AI Models Supported
Foundation Models Supported
Multimodal Models Supported
Hy4:

Integrations

Google Cloud Platform Not Supported
Meta AI Not Supported
Muse Not Supported
Muse Code Not Supported
Tencent Hy Supported
Muse Ember:

Integrations

Google Cloud Platform Supported
Meta AI Supported
Muse Supported
Muse Code Supported
Tencent Hy Not Supported
Hy4:
Claim Hy4 and update features and information
Claim Hy4 and update features and information
Muse Ember:
Claim Muse Ember and update features and information
Claim Muse Ember and update features and information