Welcome to Eye on AI. Beatrice Nolan here. In today’s issue: Business leaders are confronting AI spending. ChatGPT’s market share falls below 50% Top Google Gemini executive leaves for OpenAI Americans want legal protection around AI interactions. I’m in Paris this week at one of Europe’s largest tech conferences, VivaTech, where concerns about “sovereign AI” are front and center. The U.S. government’s move to abruptly shut down foreign access to Anthropic’s powerful Mythos-tier models last week has been a stark example of Europe’s technological dependence on America—and what happens if the U.S. decides to pull the plug. Conversations on stage…