Perplexity Computer wows, Karpathy kills vibe coding, and OpenAI replaces Anthropic at the Pentagon

The New Stack

by Matthew Burns

February 28, 2026

I’m Matt Burns, Director of Editorial at Insight Media Group. Each week, I round up the most important AI developments. The post Perplexity Computer wows, Karpathy kills vibe coding, and OpenAI replaces Anthropic at the Pentagon appeared first on The New Stack.

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Originally published on The New Stack on 2/28/2026