Anthropic's Fable 5 can make weirdly fun video games with the click of a button
Anthropic released Claude Fable 5 on June 9, 2026, the first generally available model in its Mythos tier, which sits above the Opus class. The headline feature is turning a single written prompt into a working, playable browser video game when run through Claude Code, so a person with no coding background gets a finished game to play. Wharton researcher Ethan Mollick tested it hands-on and said it outperformed every other public model he had used by a wide margin. Anthropic reports the model is state of the art on nearly every benchmark it ran.