OpenAI’s new ChatGPT Work agent takes a goal, works across your apps and files for hours, and hands back finished work. The most revealing detail is what it’s built on — a coding engine — and what that says about where AI is heading.

Mark Zuckerberg’s first X post since 2023 announced Muse Spark 1.1 — Meta’s new agentic AI model and, more importantly, the first time Meta has ever charged for one of its models. Here’s why the venue, the pricing and the closed weights all say the same thing.

OpenAI’s GPT-Live models turn ChatGPT’s voice mode from a walkie-talkie into a phone call: the AI listens and speaks at the same time, hands hard questions to a frontier model behind the scenes, and is rolling out to everyone. Here’s what actually changed.

Anthropic has launched Claude Fable 5, the first model of the Claude 5 family and a new "Mythos-class" tier that sits above Opus. Here is what makes it different — always-on reasoning, a 1-million-token memory, and agents that work for hours.