The power of AI models has long been correlated with their size, with models growing to hundreds of billions or trillions of parameters. But very large models come with obvious trade-offs for ...

After years leaning on OpenAI’s foundation models, Microsoft’s in-house AI division has this week underlined the software giant’s determination to strike out on its own. On Thursday, after months of ...

GPT-5 isn’t some giant leap in raw intelligence—it’s a pretty brilliant router. I remember when GPT-4 landed: It felt like the world changed. It was a clear step up: Models suddenly reasoned, wrote ...