Tencent Releases Hy3: Open 295B MoE Model Under Apache 2.0 With 256K Context, Free on OpenRouter Until July 21

What happened

Tencent Hunyuan on July 6, 2026 released the stable version of Hy3—a large open-source Mixture-of-Experts model under Apache 2.0. The model is immediately available on Hugging Face, ModelScope, and for free on OpenRouter until July 21.

Context and impact

Hy3 outperforms models of similar size and rivals flagships with 2–5× more parameters. The Apache 2.0 license ensures commercial freedom with no geographic restrictions (unlike some earlier Chinese models). Hy3 is a strong competitor to Llama and Qwen in the large open-weight model category.

Details

• 295B total parameters, only 21B active (sparse MoE: 192 experts, top-8 routing)
• 256K context window
• Full size: 598 GB; quantized FP8: 300 GB on Hugging Face
• Free on OpenRouter until July 21, 2026
• Apache 2.0 license—commercial use, self-hosting, and fine-tuning permitted
• Preview released in April 2026; GA release on July 6