Z.AI is trading 8.35% up at HK$1116.00 after confirming on August 26, 2026, that it created the Ox Alpha AI model and plans to release its model weights publicly.

  • The announcement provided a fresh company-specific catalyst amid strong investor interest in Chinese AI capabilities.
  • No broader-market explanation is evident; major U.S. indexes are essentially flat.
  • The move follows several volatile sessions and precedes Z.AI’s August 31 interim-results meeting.