
Chris BestCo-founder & CEO
In this interview, Substack co-founder and CEO Chris Best discusses the challenge of AI slop, the premium on human attention, and Substack's new transparency tooling. Best shares insights on the rise of generated long-form content, the integration of Pangram text detection, and the dynamics of co-writing with large language models. He critiques platforms that automate authorship, applying economic models like Baumol's cost disease to predict how value shifts when content production becomes free.
Founder Stats
- Technology
- Started 2017
- Not Publicly Disclosed /mo
- 100+ team
- San Francisco, California, United States
About Chris Best
Chris Best is the co-founder and CEO of Substack, a subscription-based newsletter platform. Prior to co-founding Substack in 2017, he served as the co-founder and Chief Technology Officer of Kik Interactive, a mobile messaging application. Best is a graduate of the University of Waterloo, where he studied systems design engineering. He is a prominent voice in the creator economy, advocating for human-centric media systems and platform transparency.
Interview
July 23, 2026
What is AI slop, and how does it define the foil for Substack?
What inspired you to address the rising presence of AI slop online?
What did Pangram's data reveal about long-form writing on LinkedIn?
Why do you believe that AI slop operates like a denial of service attack on the public square?
How do you define the dividing line between responsible tool use and systemic gaming?
How does Substack's new Pangram integration help users navigate AI content?
What is "claudefishing," and why does it feel like a betrayal to readers?
How does the Pangram tool estimate if a text was generated by a machine?
How do you co-write with large language models using voice transcripts?
Why do you find yourself arguing with large language models during the drafting process?
How does your writing process differ when you are struggling to find a concept?
Why do AI models have a default bias toward writing about ethics and governance?
How does the conceptual distribution of LLM ideas compare to human ideation?
Why does human attention remain the ultimate scarce resource in an AI-dominated world?
How does Baumol's cost disease apply to writing when machine text becomes free?
Why does the Odyssey remain a powerful example of lasting human storytelling?
What features could Substack introduce to signal and reward high-quality, anti-slop ideas?
How will the rise of sophisticated AI video affect creator platforms in the future?
Table Of Questions
Video Interviews with Chris Best
The AI Slop Problem Nobody's Talking About | Substack CEO Interview
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