The verdict is in: OpenAI’s newest and most capable traditional AI model, GPT-4.5, is big, expensive, and slow, providing marginally better performance than GPT-4o at 30x the cost for input and 15x ...

OpenAI’s latest GPT-5 model dropped yesterday and it’s making big waves in the rapidly moving AI industry. GPT-5 is more than an upgrade. It aims to be a single, smarter system that blends reasoning, ...