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Description

The Hy3 preview represents Tencent Hy's most advanced model in the Hy series to date, featuring a substantial 295 billion parameters in a Mixture-of-Experts structure, with 21 billion parameters activated and an impressive 3.8 billion parameters dedicated to the MTP layer, all while accommodating a context window of up to 256,000 tokens. This groundbreaking model is the first to harness Tencent Hy's newly revamped infrastructure, aimed at enhancing practical applications in areas such as complex reasoning, following instructions, learning from context, coding tasks, and overall inference capabilities. By seamlessly integrating both rapid and thorough cognitive processing, it provides straightforward answers for simpler inquiries while facilitating in-depth analysis for intricate math, programming, and reasoning challenges. The model is crafted to exhibit comprehensive skills in understanding long contexts, adhering to instructions, employing tools, and executing agent workflows, with assessments conducted not only against conventional benchmarks but also within real-world business and development contexts. Furthermore, its design ensures adaptability to a wide range of scenarios, thereby broadening its usability in diverse applications.

Description

Muse Spark 1.2 is Meta’s newest coding-focused model, released alongside Muse Code as part of Meta’s AI developer platform. The model improves on Muse Spark 1.1 with stronger code generation, complex debugging, codebase understanding, and full developer workflow performance. Muse Spark 1.2 powers Muse Code, a terminal coding agent that can plan changes, write code, validate results, and coordinate persistent background subagents. The model was co-trained with Muse Code so it performs well inside the agentic coding runtime and tool environment. Its training included scaled coding compute, broader training environment diversity, rejection-sampled harness trajectories, recipe optimizations, and Muse Code toolset integration. Muse Spark 1.2 is designed for long-horizon coding tasks such as whole-repository generation, large end-to-end projects, auto-research, and extended optimization work. It uses planning to sequence work, goal conditioning to stay aligned with the user’s objective, and context compaction to preserve useful knowledge over long sessions. The model also benefits from a self-improvement loop where Muse Spark 1.1 generated challenging coding environments and instruction-following templates for training. By combining coding specialization, agentic workflow support, long-horizon training, subagent compatibility, and Meta Model API availability, Muse Spark 1.2 helps developers build, debug, and optimize software more effectively.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

CSS No 
Go No 
Gray Swan No 
HTML No 
Instagram No 
LlamaIndex No 
Meta AI No 
Muse Code No 
Muse Spark No 
Muse Video No 
Objective-C No 
OpenAI Agents SDK No 
OpenClaw No 
OpenCode No 
R No 
Ruby No 
Rust No 
Scala No 
Solidity No 
Tencent Hy Yes 

Integrations

CSS Yes 
Go Yes 
Gray Swan Yes 
HTML Yes 
Instagram Yes 
LlamaIndex Yes 
Meta AI Yes 
Muse Code Yes 
Muse Spark Yes 
Muse Video Yes 
Objective-C Yes 
OpenAI Agents SDK Yes 
OpenClaw Yes 
OpenCode Yes 
R Yes 
Ruby Yes 
Rust Yes 
Scala Yes 
Solidity Yes 
Tencent Hy No 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Pricing Details

$1.25 per 1M tokens (input)
$1.25 per million tokens in input, and $4.25 per million tokens of output
Free Trial Yes 
Free Version No 

Deployment

Web-Based Yes 
On-Premises Yes 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Tencent

Founded

1998

Country

China

Website

hy.tencent.com/research/hy3-preview

Vendor Details

Company Name

Meta

Founded

2004

Country

United States

Website

meta.ai

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