AI News - Meta’s Llama Approved by US Gov | Grok 4 Fast, Perplexity Comet

Today’s AI news roundup is packed with big updates in the world of AI tools and platforms:

Meta’s Llama gets official approval for U.S. government use, opening the door for wider adoption in public sector work.

Perplexity expands its Comet AI browser to Pro users in India, reshaping how people search and explore the web.

Kahoot! launches free AI-powered study tools to help students learn smarter this school year.

PR Newswire debuts Amplify, an AI-driven platform to help brands shape and distribute their stories more effectively.

xAI rolls out Grok 4 Fast, a cost-efficient AI model designed to make advanced reasoning more affordable.

AI is no longer just for tech companies — it’s moving into classrooms, government offices, and even PR campaigns.

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