Rhea Purohit in Vibe Check Was this newsletter forwarded to you? Sign up to get it in your inbox. Grok 4 is topping some big AI benchmarks. So why have the responses to it been so mixed? And how come ...

Discover why some puzzles stump supersmart AIs but are easy for humans, what this reveals about the quest for true artificial ...

The Department of Defense’s Chief Digital and Artificial Intelligence Office has awarded contracts totaling nearly $800 ...

Improved performance, though, means increased risk. In Agent’s system card, OpenAI says it has, for the first time, “decided ...