Following rivals like Amazon and OpenAI, Microsoft is upgrading its artificially intelligent assistant to track your health. There are benefits and risks to consider.

When a worker thread completes a task, it doesn't return a sprawling transcript of every failed attempt; it returns a compressed summary of the successful tool calls and conclusions.

As models like Gemini and Claude evolve, their simulated personalities can drift in strange directions—raising deeper questions about how AI systems think and decide.