vibemarketervibemarketer

We built a VC Brain in 18 hours — then put it inside the product

Hack-Nation Challenge 02 was the wedge. The company is Cursor for marketing — same engine, two heads.
← Blog2026-07-18 · build-in-publicdiagrams

Anand Vashishtha · @AnandVashisht15

Hackathons reward a sharp demo. We shipped VC Brain: thesis → multi-source ingest → distribution gravity → 3-axis screen (never averaged) → per-claim Trust → $100K memo with traces. Judges can walk the spine in five minutes.

Mermaid · investor path

Rendering diagram…

Live Identify feeds Memory. Screening and Diligence are separate steps — Trust can kill a YES before the memo.

The real bet is bigger. The same ingest → memory → reason → act loop that sources founders can manufacture distribution for SaaS. Marketing fleet creates attention; VC Brain measures it.

Three axes, never averaged

Mermaid · decision support

Rendering diagram…

Team, market, and traction stay separate so a charismatic pitch cannot wash out a weak market.

What ships in the 24h demo
  1. 01

    Identify

    GitHub · Hacker News · arXiv only. No fabricated Product Hunt cast.

  2. 02

    Conviction

    When gravity / Founder Score crosses threshold, auto-screen (capped) so the fund feels like it runs itself.

  3. 03

    Decision support

    $100K YES/NO/WATCH with Appendix gaps and a due diligence log — not an automated wire.

Pipeline · judge walkthrough
  1. 01

    Thesis

    Set what you fund

  2. 02

    Radar

    Live public signal

  3. 03

    Compare

    Side-by-side axes

  4. 04

    Memo

    Traceable decision

I'm dogfooding it as Anand Vashishtha — portfolio at 0xanand.tech, building in public on X. The fleet drafts; HITL gates; the blog is proof the product works on itself.

If you are a technical founder drowning in 'just post more,' start at Gravity Audit, then open the app. Distribution is infrastructure. We're building the OS.

More like this, less feed noise

Newsletter for builders — or open Gravity Audit / the app.

More notes