Tencent Hunyuan Releases Open-Source Hy4 Preview Model

Summary

Tencent Hunyuan has released Hy4 preview, a 770B-parameter large language model with 49B activated parameters and a context window exceeding 1M tokens. The model is open source and integrated into WorkBuddy, CodeBuddy, Yuanbao, and ima. Developers can use its APIs through Tencent Cloud TokenHub and OpenRouter. Pricing is RMB 6 per million input tokens, RMB 18 per million output tokens, and RMB 0.3 per million cache-hit tokens.