Hy4

Hy4

Tencent
Inkling

Inkling

Thinking Machines Lab
Hy4 Inkling

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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.
Inkling:

About

Inkling is an open-weights multimodal AI model from Thinking Machines designed as a customizable foundation model for developers, researchers, and enterprises. The model is a Mixture-of-Experts transformer with 975 billion total parameters, 41 billion active parameters, and support for context windows up to 1 million tokens. Inkling was trained from scratch on text, images, audio, and video, giving it native capabilities across reasoning, coding, agentic tool use, vision, audio, factuality, and instruction following. It is built with controllable thinking effort so users can balance performance, latency, and token efficiency for different workloads. The model is available for fine-tuning on Tinker, with playground access, API availability through ecosystem partners, and full weights published on Hugging Face. Built for customization, Inkling gives teams an open-weights base model for building domain-specific AI systems, multimodal agents, coding workflows, research tools, and more.
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
Inkling:

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
Hy4:

Audience

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

Audience

AI developers, researchers, model fine-tuning teams, enterprise AI groups, agent builders, coding tool makers, multimodal AI teams, infrastructure providers, and organizations that need open-weights models for customization, long-context reasoning, vision, audio, tool use, and specialized AI applications
Hy4:

Support

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

Support

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

API

Offers API Supported
Inkling:

API

Offers API Supported
Hy4:

Screenshots and Videos

Inkling:

Screenshots and Videos

Hy4:

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported
Inkling:

Pricing

Free
Free Version 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
Inkling:

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
Inkling:

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
Inkling:

Company Information

Thinking Machines Lab
Founded: 2025
United States
thinkingmachines.ai/
Hy4:

Alternatives

Gemini 4 Hydrogen

Gemini 4 Hydrogen

Google
5.0 out of 5 stars
Inkling:

Alternatives

Gemini 4 Hydrogen

Gemini 4 Hydrogen

Google
5.0 out of 5 stars
Hy4:
Claude Fable 5.2

Claude Fable 5.2

Anthropic
5.0 out of 5 stars
Inkling:
Claude Fable 5.2

Claude Fable 5.2

Anthropic
5.0 out of 5 stars
Hy4:
Inkling:
Hy4:
Inkling:
Inkling 2 Small

Inkling 2 Small

Thinking Machines Lab
Hy4:
Qwen3.5

Qwen3.5

Alibaba
Inkling:
Inkling-Small

Inkling-Small

Thinking Machines Lab
5.0 out of 5 stars
Hy4:

Categories

AI Coding Models Supported
AI Models Supported
Foundation Models Supported
Inkling:

Categories

Hy4:

Integrations

Model Context Protocol (MCP) Not Supported
Tencent Hy Supported
Tinker Not Supported
Inkling:

Integrations

Model Context Protocol (MCP) Supported
Tencent Hy Not Supported
Tinker Supported
Hy4:
Claim Hy4 and update features and information
Claim Hy4 and update features and information
Inkling:
Claim Inkling and update features and information
Claim Inkling and update features and information