OpenAI has introduced GPT-4.5, an upgraded AI model designed for enhanced human-like interactions and creative intelligence. Alongside the release, OpenAI is integrating Sora, its text-to-video tool, into ChatGPT, allowing seamless video generation within the platform. Due to GPU shortages, GPT-4.5 is currently limited to ChatGPT Pro and high-tier API users. OpenAI plans to expand access once more GPUs become available, while also investing $500 billion in AI infrastructure for future advancements.