loop.ai

Loop reads your code and runs proprietary deep research to find the real user pain worth solving next. It synthesizes frameworks from the best product minds in the world — Lenny Rachitsky, Shreyas Doshi, Julie Zhuo, Marty Cagan, Elad Gil — and pressure-tests every candidate against live evidence. It generates twenty options, critiques each one, and returns the ten strongest with a build prompt you can paste into any AI coding tool.

Measured 50% sharper than the strongest AI ranking features on its own, on real production codebases. Models: Claude Opus 4.7, Sonnet 4.6, Haiku 4.5.