China AI Compass



Startups, funding and research from China’s AI ecosystem — read in Chinese, written in English, mostly unreported elsewhere.

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Tencent Hunyuan Hy4 Preview ranks 5th globally and 1st in China on Arena's Alignment Index

Arena (LMArena) has published an Alignment Index leaderboard based on more than 90,000 real agent sessions across 27 models, measuring overreach, misattribution, and false-completion failure signals. Tencent Hunyuan Hy4 Preview scored 78.5, ranking fifth globally and first in China. Its 1.47% overreach rate was the lowest of any Chinese lab, while its 13.24% false-completion rate remained above the 10% average.

Oct 10, 2026Source: tmtpostLanguage Models

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