Happy Thursday! I’m Andrea Jiménez, the tech bureau’s news aide, announcing some changes to the Tech Brief. The Thursday edition will highlight a selected Post story and continue the comprehensive tech policy news roundup that we have always run in every brief. The Tech Brief’s Tuesday edition will stay unchanged and be anchored by Will Oremus.

"We are aware of recent posts made by Grok and are actively working to remove the inappropriate posts. Since being made aware of the content, xAI has taken action to ban hate spee

Elon Musk’s artificial intelligence startup xAI is rolling out Grok 4 just months after releasing its previous iteration, underscoring the frenetic pace of AI development.