Tencent Releases Hy3 Preview MoE Model with 262K Context and Three Reasoning Modes
Tencent has released Hy3 Preview, a Mixture-of-Experts model offering 262,144 token context window and three configurable reasoning modes (disabled, low, high) for production agentic workflows. The model is available for free through OpenRouter.
Tencent Hy3 Preview — Quick Specs
Tencent Releases Hy3 Preview MoE Model with 262K Context and Three Reasoning Modes
Tencent has released Hy3 Preview, a Mixture-of-Experts (MoE) model designed specifically for agentic workflows and production deployment, according to the company. The model features a 262,144 token context window and is available for free through OpenRouter as of April 22, 2026.
Key Specifications
- Context Window: 262,144 tokens
- Pricing: $0 per 1M input tokens, $0 per 1M output tokens
- Architecture: Mixture-of-Experts (MoE)
- Reasoning Modes: Three configurable levels (disabled, low, high)
- Release Date: April 22, 2026
- Availability: OpenRouter platform
Configurable Reasoning System
The defining feature of Hy3 Preview is its three-tier reasoning system. Users can select between disabled, low, and high reasoning modes depending on task requirements. According to Tencent, this allows the model to balance processing speed against analytical depth for different use cases.
The model supports OpenRouter's reasoning parameter system, which exposes step-by-step thinking through a reasoning_details array in API responses. When continuing conversations, applications must preserve the complete reasoning details to maintain reasoning continuity across turns.
Production Focus
Tencent positions Hy3 Preview as optimized for multi-step, real-world workflows rather than benchmark performance. The company claims strong code generation capabilities and reliable performance in agentic scenarios where models must plan and execute sequences of actions.
Parameter count, training data cutoff date, and specific benchmark scores have not been disclosed.
Availability
The model is accessible through OpenRouter's API at no cost. OpenRouter routes requests across multiple infrastructure providers with automatic fallback to maximize uptime. Usage statistics are not yet available due to the recent release.
What This Means
Hy3 Preview represents Tencent's entry into the reasoning-capable model segment, joining competitors like OpenAI's o1 and DeepSeek-R1. The free pricing and production-focused design suggest Tencent is prioritizing adoption and real-world testing over immediate monetization. The 262K context window positions it competitively for document processing and long-form agentic tasks, though the absence of benchmark data makes direct performance comparisons difficult. The configurable reasoning modes offer a practical approach to the speed-vs-accuracy tradeoff that production applications face when deploying reasoning models.
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