According to Andrej Karpathy on Twitter, there is growing interest in exploring Substack as an alternative to Twitter for accessing higher quality, longform AI content (source: @karpathy, August 28, 2025). Substack's platform encourages the creation and distribution of in-depth AI analysis and industry insights, which presents valuable business opportunities for AI professionals and companies seeking to engage with a targeted, knowledge-driven audience. As AI discourse shifts toward more comprehensive formats, businesses in the AI sector can leverage Substack to build thought leadership, foster community, and monetize specialized expertise through subscriptions and newsletters.