OpenAI's latest model delivers powerful results but sometimes ignores simple directions, creating a tension between intelligence and control.
OpenAI's newest model matches GPT-5.4's speed while outperforming it on nearly every benchmark. It's rolling out to paid ChatGPT users today.
OpenAI says it has already put GPT-5.5’s coding skills to use internally. The LLM helped optimize the software that manages ...
Anthropic's Mythos AI is being kept behind closed doors as governments assess what faster, AI-driven vulnerability discovery ...