[xAI Co-founder Jimmy Ba Resigns, Another Key Member Change Following Wu Yuhuai] February 11 news: xAI co-founder Jimmy Ba announced his resignation. In a tweet, Jimmy Ba stated that today is his last day at xAI, expressed gratitude to Musk for bringing the team together to complete this journey, and shared pride in the achievements of the xAI team, while noting that he will remain in close contact as a friend. Previously, it was reported that xAI co-founder Wu Yuhuai announced his resignation yesterday.