Elon Musk's xAI faces upheaval as last co-founder departs unexpectedly.
All but two of Musk's 11 xAI co-founders have left, sparking speculation.
Anthropic's Claude AI model sees explosive growth in paid subscriptions.
Creative iPad apps are a bright spot in the tech industry amidst upheavals.
The world watches as Musk navigates xAI through uncertain times.