Hy4
The official release of Hy4 delivers comprehensive and substantial improvements over Hy4 Preview, with particularly strong gains in agentic capabilities and performance across a wide range of long-horizon, real-world productivity...
Specifications
| Lab | Tencent |
|---|---|
| Context window | 1M tokens |
| Input price | $0.42/1M |
| Output price | $1.25/1M |
| Release | Nov 2026 |
Strengths
- Official Hy4 release with major gains over Hy4 Preview in agentic and long-horizon productivity tasks
- 1M-token context with new visual understanding: charts, fine-grained images, math visual reasoning
- Computer-use ability across CLI and GUI plus training on Blender and CAD for complex multi-step work
- Open-weight MoE lineage (770B total / 49B active in Preview) at budget API pricing
Weaknesses
- Just released with limited independent benchmark evaluation
- Safety-filtered training (cyber-offense content removed) may narrow security-useful coding tasks
Best for
- Long-horizon coding and productivity agents
- Multimodal document and chart analysis
- Cost-efficient large-context tool-use workflows
In Depth: Hy4
Summary
Hy4 is an AI model from Tencent.
Released in Nov 2026. It takes text and image input and produces text output, with a context window of 1M tokens. Input pricing is $0.42 per 1M tokens and output is $1.25 per 1M tokens on OpenRouter.