The quarrel between the federal government and the startup behind Fable and Mythos thickened over the weekend.

An internal leak at Anthropic has revealed company information including its new most powerful model known as Claude Mythos. Credit: Michael M. Santiago/Getty Images An accidental leak has now been ...

“Releasing a model this capable comes with risks," Anthropic said in its announcement.

On Thursday, Anthropic launched Claude Opus 4.8, the latest and most advanced version of its flagship AI model. It’s available everywhere at the same price as its predecessor, Opus 4.7 ($5 per million ...

Scraping the open web for AI training data can have its drawbacks. On Thursday, researchers from Anthropic, the UK AI Security Institute, and the Alan Turing Institute released a preprint research ...