Kieran’s Substack - The AI Marketing Generalist · Kieran Flanagan
articleplaybookThe Rise of the 'AI Brains'. And Why Everyone Is Building One.
3 July 2026Growth
Source excerpt
About Kieran’s Substack - The AI Marketing GeneralistFrom Karpathy's LLM Wiki to Brian Halligan's digital twin, how the smartest people in tech are building AI systems that think, remember, and act on their behalf.
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Apollo layer
What a founder can learn
Founder takeaway
Treat an “AI brain” as a persistent system built around context, memory, and action—not just a chat interface. Start with one recurring workflow where retaining knowledge and acting on it can create meaningful leverage.
Why it matters
AI becomes more useful when it can carry relevant context across tasks and turn that understanding into repeatable action. A focused system can reduce repeated briefing, preserve institutional knowledge, and make a valuable workflow less dependent on one person.
Relevant guides
Put it to work
Which recurring founder or team workflow would improve most if an AI system could remember prior decisions, use trusted company context, and take a clearly bounded next action?