Mike Krieger, co-founder of Instagram, has joined Anthropic, an AI company, as their Chief Product Officer. Krieger announced his new role on social media, expressing enthusiasm about the team at Anthropic. This move follows the closure of his previous venture, Artifact, a news reader app co-founded with Kevin Systrom. Anthropic is known for its AI talent and is building a world-class executive team, with Krieger's appointment seen as a significant addition to the company.