3 Startups · $9M+ · AI + Creator Economy + Design

What they're building

The vibe-coding revolution moved the bottleneck. Writing code is no longer the constraint for building software, AI coding tools like Claude Code, Cursor, and Lovable have largely solved that. The new constraint is planning. Give a coding agent a vague instruction and it produces fragile output. Features conflict. Integrations break. The prototype works; the product doesn't. BrainGrid sits upstream of the coding agent and solves the planning problem. Its four-stage framework, Capture, Structure, Build, Verify, turns a rough idea into a structured product specification that AI coding tools can execute reliably and consistently. The platform asks the right questions to surface edge cases and hidden complexity before a single line of code is written, then outputs specs in a format that agents can act on without a human in the loop translating between intent and implementation. Over 500 builders have already shipped AI-native SaaS products using it across fitness, healthcare, productivity, and venture studio contexts, including products with real paying customers.

Why this matters

The vibe-coding wave has created millions of new "builders" who are not engineers. Domain experts, non-technical founders, solo operators, and product managers now have access to tools that can generate working software from a prompt. What they don't have is the product management discipline that separates a demo from a product. BrainGrid is betting that the PM layer, which in a traditional software team is a salaried function, will become a software product in the AI-native era. Menlo Ventures lead investor Shawn Carolan's thesis is straightforward: the millions of new founders empowered by AI coding tools need the infrastructure to plan reliably before they build. The Twilio background of both founders is the key detail here. Twilio was one of the first developer platforms to truly nail the problem of making complex infrastructure accessible to builders who didn't want to understand what was happening underneath. BrainGrid is applying the same philosophy to product planning: the complexity of good product management should be invisible to the person using the tool.