ChatGPT4.9
DirectLLM chatbot
ChatGPT is a recurring tool in Lenny's product workflow. He's published essays on his prompt patterns for product strategy and interviews founders about their use of it.
← Back to all tools
Person profile
Lenny Rachitsky's AI stack.
Newsletter writer; Angel investor at Lenny's Newsletter (ex-Airbnb).
Tools Lenny Rachitsky has publicly discussed or demonstrated using. Curated by Magpie's editorial team from podcasts, posts, and public stacks.
Lenny Rachitsky writes Lenny's Newsletter and hosts Lenny's Podcast, where he interviews around 50 founders and product leaders a year about their tools, processes, and stack. He's an angel investor and the most-read Substack in product management.
Tools Lenny has publicly discussed.
- Claude4.7DirectLLM chatbot
Has published essays naming Claude as a primary writing assistant and interviewed Anthropic-related guests on the podcast.
- Perplexity3.7DirectLLM chatbot
Names Perplexity in his recommended-tools posts. Has interviewed Aravind Srinivas on Lenny's Podcast.
- Notion AI4.3DirectWriting
Notion is core to Lenny's writing pipeline. He's published essays specifically on his Notion-AI-augmented workflow.
- Granola4.0DirectMeetings
Granola appears in his recommended-tools posts as a meeting-notes assistant. Documented in essays naming his daily AI stack.
Evidence tiers
Direct: a video, podcast, post, or essay where Lenny names the tool. Implied: their company's public stack, repeated adjacency, or job ads. We don't list guesses. See how Magpie scores tools.
More people on Magpie
See all people →
Editorial note
These tools have been mentioned by the people featured in podcasts, interviews, posts, and other public media. Source links and citations are included wherever possible. Magpie AI has no direct relationship with the people on these pages. This is editorial coverage, not an endorsement, sponsorship, or affiliation. Spot a missing tool or a wrong attribution? Suggest a correction →
Photo: X profile