Tencent Hy4 preview reports 31.8% throughput gain from self-found bottlenecks

Tencent Hunyuan says its Hy4 preview model found inference bottlenecks on its own and raised end-to-end throughput by 31.8% through operator fusion and communication optimizations. The post says the gain holds across context lengths and concurrency levels.

The release is listed at 770B total parameters with 49B active and a 1M context window, with links to the Hy blog, Hugging Face, and GitHub.