Mosaic

Executive Summary

Mosaic is a seed-stage YC W25 startup building an agentic AI video editor that lets users automate editing workflows on a node-based canvas and A/B test multiple video variants from the same raw footage — a genuinely differentiated feature set in an otherwise noisy market. The core claims check out: YC backing is confirmed, the Google Gemini Kaggle competition win is credible, and the SaaStr pitch win is independently verified. The biggest risk is not the product — it's the capital table and competitive clock: with only $500K raised, a 2-person all-engineering team, and Runway ($600M+), Adobe, and Google building in the same direction, Mosaic has a narrow window to prove enterprise willingness-to-pay and raise a meaningful Series A before better-funded incumbents close the feature gap.