BHAG models your market with AI, so you know who your product is for — and why they'd pay — before you write a line of code. Instead of weeks of manual interviews, it runs a representative AI panel through rigorous Jobs-to-be-Done research and returns a Discovery Report: real segments, your ideal customer, a value proposition in their language, a feature map, a go-to-market plan, and the riskiest assumptions to test first. For builders who'd rather validate demand than build in the dark.