Junbi.ai Reviews for 2025

What is Junbi.ai?

Junbi.ai is an AI-powered ad insights platform designed to help marketers test and optimize YouTube video creatives before launch. It harnesses an attention prediction engine, expoze.io, to generate frame-by-frame heatmaps and effectiveness scores—such as Brand Attention, Ad Breakthrough, and Cognitive Ease—without needing human participants.

Users can upload ads and benchmark them against a database of over 20,000 real YouTube ads, receiving instant predictive analytics and actionable feedback to boost return on ad spend (ROAS). A simple three-step workflow lets teams test unlimited ad variations, compare performance, and prioritize top creatives based on predictive scores.

Recently, Junbi.ai expanded support to include Connected TV (CTV) testing, enabling brands to assess ad performance in simulated TV environments and adapt creative strategies accordingly. The platform offers organizational features like folder management and user roles, making it easy to share insights with agencies and internal stakeholders.

Built on scientifically validated models with 95% predictive accuracy compared to traditional eye-tracking, Junbi.ai provides fast, privacy-conscious creative optimization. It’s an efficient solution for marketing and insights teams that want to pre-test YouTube ads at scale, uncover visual attention gaps, and refine messaging before committing to campaign spend.