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From a Billion Users to the AI Frontier: A Conversation with Instagram Co-Founder and Anthropic Labs’ Mike Krieger

calendar_today September 29, 2026 domain sierra-ventures

Mike Krieger has been in the room for more than one major shift in tech. He co-founded Instagram, one of the most popular consumer products ever built, and stayed on as CTO after the Facebook acquisition, helping it grow past one billion users. In 2024, he joined Anthropic as Chief Product Officer, leading product at one of the most influential companies in AI during one of the most pivotal stretches our industry has seen.

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