Tencent Hy4 preview upgraded to cut overthinking and token use

Tencent Hunyuan says its Hy4 preview has been upgraded to reduce long thinking and over-verification on complex tasks, which users had flagged. The company reports the same task quality with fewer turns and lower input and output tokens, confirmed by benchmark and human evaluation. The upgrade is live for all users, and Tencent says it will keep iterating based on feedback.