Last Week in AI #346 - 719 math manuscripts, 2 Western open models, 1 more safety resignation

# Last Week in AI #346 OpenAI shared hundreds of math proofs that its newest AI model solved, giving the public a rare peek at what cutting-edge AI can do before the company officially releases it. Two companies launched new free AI models that they hope will compete with China's AI development and keep advanced technology from being controlled by just a few players. The week also saw another safety-focused employee leave OpenAI, adding to growing concerns about the company's priorities.