# Tencent Previews Hunyuan Hy4, an Apache MoE Model

> The company's next-generation Hunyuan language model arrives as an early preview with a permissive license and a mixture-of-experts design.

Published by The Open Weights on Aug 27, 2026. Canonical: https://theopenweights.com/news/hunyuan-hy4-aazc

## Key facts

- Company: Tencent
- Model: Hunyuan Hy4 (preview)
- Version: Hy4-preview
- Category: Text / LLM
- Modalities: Text / LLM, Reasoning
- License: Apache 2.0 (Open weights, commercial use allowed)
- Context window: 1.0M tokens
- Architecture: HYV4ForCausalLM
- Precision: BF16
- Weights size: 1560 GB
- Significance: notable
- Published: 2026-08-27
- Last verified: 2026-09-10
- Hugging Face: https://huggingface.co/tencent/Hy4-preview
- Canonical URL: https://theopenweights.com/news/hunyuan-hy4-aazc

Tencent has quietly posted an early preview of its next-generation Hunyuan language model, [Hy4-preview](https://huggingface.co/tencent/Hy4-preview), on Hugging Face. The release marks the debut of the v4 line and arrives under the permissive Apache 2.0 license, which allows commercial use and modification without the restrictions that accompany many large open-weight models.

The model uses a mixture-of-experts (MoE) architecture and is positioned for both general text generation and reasoning tasks. Tencent has not published parameter counts, context-length figures, or benchmark numbers in the preview listing, so the model's exact scale and capabilities remain to be detailed.

## Why it matters

MoE designs have become the dominant approach for scaling large models efficiently, activating only a subset of parameters per token to keep inference costs manageable. A permissively licensed preview from Tencent adds another serious entrant to a field where Chinese labs — including Alibaba's Qwen and DeepSeek — have been shipping increasingly capable open weights.

A few things worth noting about this release:

- It is an explicit preview, suggesting a fuller v4 launch may follow with more documentation.
- The Apache 2.0 license is unusually permissive for a flagship model line.
- Key specifications are still absent, so independent evaluation will have to wait.

For now, developers can inspect the weights and configuration directly on the [Hugging Face repository](https://huggingface.co/tencent/Hy4-preview), though those hoping for official benchmarks or a technical report will need to wait for Tencent to say more about how Hy4 compares to its predecessors and rivals.

## Get the model

- [Hugging Face](https://huggingface.co/tencent/Hy4-preview)

## Sources

- [tencent/Hy4-preview](https://huggingface.co/tencent/Hy4-preview) — Hugging Face, Aug 27, 2026

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Source: The Open Weights (https://theopenweights.com/). Aggregated and written by Claude, curated by humans. Cite as: "Tencent Previews Hunyuan Hy4, an Apache MoE Model", The Open Weights, Aug 27, 2026, https://theopenweights.com/news/hunyuan-hy4-aazc