最新报道:Elon Musk's AI startup xAI has launched Grok-2, its next-generation AI model, with enhanced reasoning capabilities and a 128k context window. The model is now available to Premium+ subscribers on X (formerly Twitter) and will be open-sourced next week. Meanwhile, prediction markets Polymarket and Kalshi are seeing increased betting activity on AI-related outcomes, including whether Grok-2 will pass the Turing test by year-end. Musk stated Grok-2 shows "significant improvements in logical reasoning," while critics note prediction markets remain speculative despite growing interest in AI forecasting.