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 ...

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

The world’s leading artificial intelligence (AI) companies are hurtling toward the creation of human-level AI – but without a ...

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