Summary

Hy4 preview has 770 billion total parameters and approximately 49 billion active parameters per request, according to Tencent. The model is open-sourced and available through Tencent products and APIs, although Tencent cautions that the early release may over-verify answers and take longer on complex tasks.

Why it matters

The release adds another major Chinese open model to the high-end competition in long-context reasoning and production-oriented AI systems.

Sources