Lenny · since 2023 (Initial Release) · 9× · last seen Jul 01, 2026
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Momentum
Lennybot is an AI chatbot by Lenny Rachitsky trained on content from "Lenny's Newsletter" and "Lenny's Podcast" that answers questions about product management, growth, and career. The bot is based on GPT-4 (with optional GPT-3.5 selection) and links to the underlying newsletter/podcast sources in its responses. It was originally built as a GPT-3 prototype and later relaunched as a GPT-4 version; it is freely accessible via lennybot.com or the Lenny's Newsletter website.
Momentum trend
19.05.17.08.
Features
| Output Formats | Text-based chat answers with source links |
| Base Model | GPT-4 (GPT-3.5 selectable as alternative) |
| Integrations | Links sources from Lenny's Newsletter, Lenny's Podcast, Twitter/X, and LinkedIn |
| Platform | Web app (lennybot.com or lennysnewsletter.com/cc/lenny-bot) |
| Price | Free to use |
| Release Date | Initial release February 8, 2023 (GPT-3 prototype); GPT-4 relaunch late July 2023 |