Open Source Competition

T3 ChatCloneathon

It's like a hackathon, but everyone's building a T3 Chat clone.

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Deadline: June 17, 2025 at 12:00 PM PDT

1 Week

Complete your clone within the competition timeframe

$10,000+

Total prize pool for winners and participants

Open Source

All submissions must be open source and publicly available

Prizes & Rewards

Cash Prizes

Awarded to the top 3 submissions

🥇 WINNER

1st Place

$5,000

Grand Prize Winner

🥈 RUNNER-UP

2nd Place

$2,000

Second Place Prize

🥉 THIRD

3rd Place

$1,000

Third Place Prize

Top 8 Finalists

1 Year Free T3 Chat

All finalists in the top 8 receive complimentary access to T3 Chat

Requirements

Build a cool AI chat app. Have fun with it. Make it look and feel however you like.

Core Requirements

The minimum to qualify for a prize

Chat with Various LLMs

Implement support for multiple language models and providers

Required

Authentication & Sync

User authentication with chat history synchronization

Required

Browser Friendly

As much as we'd like to, we can't realistically get everyone's native apps set up

Required

Easy to Try

We need an easy way to try out what you've built!

Required

Bonus Features

Ideas to go above and beyond

Attachment Support

Allow users to upload files (images and pdfs)

Image Generation Support

AI-powered image generation capabilities

Syntax Highlighting

Beautiful code formatting and highlighting

Resumable Streams

Continue generation after page refresh

Chat Branching

Create alternative conversation paths

Chat Sharing

Share conversations with others

Web Search

Integrate real-time web search

Bring Your Own Key

Use your own API keys

Mobile App

Why not ship mobile and web?

Anything Else

Get creative - we love unique ideas :)

Meet the Judges

These nerds will decide the winners. They have no formal criteria, just vibes.

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Theo

Personality Hire

@theo
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Mark

Writes Theo's Code

@r_marked
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Julius

Actual Developer

@jullerino

Competition Rules

Open Source Requirement: Submissions must be open source with a permissive license (MIT, Apache, BSD etc.) and hosted on GitHub

Age Requirement: Must be 18+ to be eligible for prizes

Team Size: No more than 4 people per team

Code of Conduct: Don't harass anyone please

Content Usage: Theo might use your submission for content btw

Frequently Asked Questions (FAQ)

Can I submit work that I started before the competition started?

Yes, absolutely. As long as it is fully open source, you can use whatever you've built in the past (we will judge it harder though)

Inference is expensive, can I require bringing your own key?

Absolutely fine - just make sure that OpenRouter is one of the BYOK options (makes testing much easier for us)

Does it have to be a 1 to 1 T3 Chat clone?

No! The more creative the better, but feel free to clone as well. Just, uh, make sure it's clear that it's not the ACTUAL T3 Chat

Do I have to build a web app?

Web apps make things significantly easier for our judges to check out. If you ALSO build a mobile app and have an easy way for us to test it via TestFlight, we might check it out

Do all team members have to be 18+?

As long as the submitter is 18+ and can file the required paperwork upon winning, all is good :)

Can I vibe code my submission?

Sure, but, uh...good luck with that.

Ready to Build?

Join the T3 Chat Cloneathon and showcase your development skills. Registration opens soon!

By participating, you agree to our Terms and Conditions