Charles Cai (charles-cai)

London, United Kingdom
GitHub
Twitter
LinkedIn

CALL-E: Your Code Is Calling

Online

Turn your code into an AI agent that makes real phone calls.

$10,000 in prizes
Winners announced
3199 participants

Agentic Cinema: The Blockbuster Hackathon

Online

Lights. Camera. Code.

$75,000 in prizes
Winners announced
10092 participants

All Things Agentic Hackathon

Online

Ready, Set, Agent! Build next-generation agents that run in the background, handle the heavy lifting of massive datasets, and automate complex workflows asynchronously.

$180,000 in prizes
Winners announced
12261 participants

OpenAI Build Week

Online

Join a global week of building with Codex

$100,000 in prizes
Winners announced
46673 participants

Global AI Hackathon Series with Qwen Cloud

Online

Build your own AI Agent on Qwen Cloud - compete for $70K in prizes across five tracks.

$45,000 in prizes
Winners announced
8438 participants

The Reddit Daily Games Hackathon

Online

Join Reddit and GameMaker to build incredible daily games for the Reddit community!

$40,000 in prizes
Winners announced
2980 participants

Rift Rewind Hackathon

Online

Your Season, Your Story — League API + AWS AI Services

$26,000 in prizes
Winners announced
2629 participants

AI Accelerate: Unlocking New Frontiers

Online

Unlocking New Frontiers: A Multi-Partner Google Cloud Hackathon

$50,000 in prizes
Winners announced
2721 participants

Starknet Re{Solve} Hackathon

Online

Unlock tomorrow's apps: Ultra-low fees, Ethereum security, Bitcoin power

$47,500 in prizes
Winners announced
1473 participants

Plotly Analytics Vibe-a-Thon

Online

Create a data app with a dataset and Plotly Studio

$1,750 in prizes
Winners announced
1471 participants

OpenAI Open Model Hackathon

Online

Build with gpt-oss, OpenAI’s open weight reasoning models.

$30,000 in prizes
Winners announced
8639 participants

Google Maps Platform Awards

Online

20 years ago we made the Google Maps Platform API, then you made history.

Non-monetary prizes
Winners announced
3948 participants

World’s Largest Hackathon presented by Bolt

Online

Build with AI for a shot at some of the $1M+ in prizes.

$1,037,500 in prizes
Winners announced
129573 participants

Agent Development Kit Hackathon with Google Cloud

Online

Build multi-agent AI systems with Agent Development Kit and Google Cloud

$50,000 in prizes
Winners announced
10349 participants

AWS Presents: Breaking Barriers Virtual Challenge

Online

Infuse generative AI with AWS and connectivity to enable equitable digital experiences for all

$16,000 in prizes
Winners announced
2316 participants

AI in Action

Online

Innovate Together: A Multi-Partner Google Cloud Hackathon

$50,000 in prizes
Winners announced
6683 participants

Perplexity Hackathon

Online

Create an internet-enabled project to inspire curiosity, seek knowledge, or reason through complex tasks.

$35,000 in prizes
Winners announced
4349 participants

Global AI Agents League

Online

A Nexus of AI Agents

$10,000 in prizes
Winners announced
1456 participants

Hypermode Knowledge Graph + AI Challenge

Online

Build a model-native app using knowledge graphs and the open source Modus API framework

$10,000 in prizes
Winners announced
507 participants

Muse Hub Hackathon

Greater London, United Kingdom

Create an audio app in 24 hours

$150 in prizes
Dec 14 – 15, 2024
52 participants

Codegeist 2024

Online

Transform team collaboration with Atlassian’s System of Work - build powerful apps for Jira, Confluence, Bitbucket and more - $170,000 in prizes.

$170,000 in prizes
Winners announced
3704 participants

Red Hat and Intel AI Hackathon

Online

Embark on an Odyssey of Innovation: The Red Hat and Intel AI Hackathon Awaits!

$15,000 in prizes
Winners announced
1044 participants

MongoDB AI Hackathon: Code for a Cause

Online

Hack for Impact with AWS and LangChain

$31,000 in prizes
Winners announced
1169 participants

[REDACTED] Hackathon

Online

reclaim_your_sovereignty.exe

$310,000 in prizes
Winners announced
1641 participants