Join Sub48

Edition #01 · 0 m

Dive in.
Surface with something real.

Winners get a paid month of ChatGPT or Claude.

Sub48 is a 48-hour build sprint for beginners. One brief drops on Friday at 7pm. Ship a working project by Sunday, and the best one wins the AI tools pros pay for.

Brief unlocks in
–
Winner gets
ChatGPT Go
Entry
Free
Who
18+, India

800 m · The brief

One brief. Sealed until Friday, 7pm.

Every edition has a single problem statement. Nobody sees it early. It unlocks for everyone at the same second, right here, with a ping in Discord.

Edition #01's brief unlocks Fri 20 Nov, 19:00 IST.

1,600 m · Who can dive

Made for beginners. Go solo or bring one friend.

  • Teams of 1 or 2. Everyone registers alone. You name your teammate when you submit.
  • 18+ and living in India. Prizes are Indian Google Play credit.
  • AI tools allowed. You're judged on what works, not how you wrote it.
  • Edition #01 is free. From Edition #02 (27 Nov) entry is ₹50.

2,400 m · The 48 hours

Friday brief. Saturday build. Sunday ship.

  1. FRI 19:00The brief unlocks. Read it, plan, start building.
  2. SAT 12:00Check-in. A one-hour Q&A in the Discord #help chat for anyone who's stuck.
  3. SUN 19:00Submit. A GitHub link and a demo video of 2 minutes or less, shared from Google Drive.

3,200 m · Rules

The rules, in short.

  • Start after the brief. Your commit history shows when you began.
  • One submission per team. The last one before 19:00 Sunday counts.
  • Your work stays yours. You own your code and your idea.
  • Break a rule, skip judging. No exceptions, for anyone.
Read all 14 rules

4,000 m · Prizes

Win the AI that helped you build it.

Winners get a paid month of ChatGPT or Claude, sent as Google Play credit. Every build is scored on a public rubric, so you know what wins.

  • 35Works
  • 25Solves the brief
  • 20UI / UX
  • 20Demo and clarity
How we score
Edition #01 winner₹400 value

ChatGPT Go

1 month · Unlocks at 10 submissions

The winner also gets a Hall of Fame spotlight. Everyone who submits gets a certificate, with its own design for the winner and runner-up. Revealed Thu 26 Nov.

From #02 · Winner₹2,000 value

ChatGPT Plus or Claude Pro

1 month, your pick

From #02 · Runner-up₹400 value

ChatGPT Go

1 month

4,800 m · Register

Your first real build is one weekend away.

Brief drops
Fri 20 Nov · 19:00 IST
Entry
Free
Winner gets
ChatGPT Go

It takes under a minute. Registration closes Thu 19 Nov.

Run by Shaik Sameer Ahamad ↗I started Sub48 so beginners can ship their first real project in a weekend. Questions? Read the FAQ or ask in the Discord.