
Open-source & AI-native replacement for Jupyter Notebooks
Ship AI billing fast - track usage, credits & flexible pricing models!
**Jupyter is used by millions** of data scientists and analysts but it has _many_ problems. **Pretzel fixes Jupyter's problems** with native AI-tooling, collaboration, modern code-editing features, native SQL support and a visual, AI-assisted data exploration and dashboarding suite. **We're two ex-Stripe founders**. Prasoon worked as a Data Scientist at Stripe, Goldman Sachs and Klarna for over 7 years. We recently launched on GitHub and got **1000 GitHub stars in two weeks**, 500+ DAU, usage at large companies like Stripe and Bayer and 7 new code contributors.
Lumen Payments (formerly Pretzel AI) shifted from building an open-source, AI-native alternative to Jupyter Notebooks for data science to providing a solution for AI billing, usage tracking, and flexible pricing models—a totally different product for a new market. This is a full pivot with no substantial continuity between the old and new directions.