Siddhartha Reddy Pullannagari (siddu1324)

St. Louis, Missouri, United States

Google Build with AI Hackathon

St. Louis, MO, USA

Create apps, agents, and products at the annual WashU DevFest Hackathon

$8,000 in prizes
Apr 11 – 12, 2026
443 participants

Cal Hacks 12.0

San Francisco, CA, USA

This year's Cal Hacks is co-hosted by Claude, Fetch AI, AppLovin, and Amazon's Annapurna Labs! Together we'll assemble in SF for a weekend of hacking, friendship, and crazy ideas.

$58,100 in prizes
Oct 24 – 26, 2025
2164 participants

AWS AI Agent Global Hackathon

Online

Agents of change - building tomorrows AI solution today

$45,000 in prizes
Winners announced
9485 participants

OpenAI Open Model Hackathon

Online

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

$30,000 in prizes
Winners announced
8655 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
128420 participants

HackHarvard 2024

Cambridge, MA, USA

Hack 4 Impact

$6,250 in prizes
Oct 11 – 13, 2024
512 participants

Canva AI and Integrations Hackathon

Online

From Code to Creation: Your Vision, Our Platform

$50,000 in prizes
Winners announced
2785 participants

UC Berkeley AI Hackathon 2024

Berkeley, CA, USA

Come join us at the world's largest AI Hackathon hosted by Berkeley SkyDeck and Cal Hacks!

$327,720 in prizes
Jun 22 – 23, 2024
930 participants

Tri Valley Summer Long Hackathon

Online

A Hackathon for beginners to advanced for Tri-Valley Students to participants to attend, along with others across the world.

$8,890 in prizes
Winners announced
842 participants

Bay Area Hacks 2.0

Online

Create. Code. Innovate.

$71,400 in prizes
Winners announced
553 participants

{eHacks} 2024

St. Louis, MO, USA

Create innovative projects with a team, attend Tech Talks, and network with other attendees and sponsors!

Non-monetary prizes
Mar 1 – 3, 2024
72 participants

Rice Design-a-thon 2024!

Online

Rice Design-a-thon is a virtual, UI/UX designathon that brings student designers together to create innovative, user-centered products to empower communities.

$1,140 in prizes
Winners announced
246 participants

MHacks 16

Ann Arbor, MI, USA

The most hype hackathon in the world is BACK.

$18,900 in prizes
Nov 18 – 19, 2023
355 participants

HackHarvard 2023

Boston, MA, USA

Hack to the Future!

$6,200 in prizes
Oct 20 – 22, 2023
633 participants

HackMIT 2023

Cambridge, MA, USA

1000 hackers, $10k+ prizes, 24 hours. Get ready to hack, build, and innovate at a hackathon like no other. September 16-17, 2023 at MIT.

$10,000 in prizes
Sep 16 – 17, 2023
1072 participants

PennApps XXIV

Philadelphia, PA, USA

PennApps is the original college hackathon. Come join us to learn something new, build an app, or start a company. Let’s continue to make history together.

$32,810 in prizes
Sep 8 – 10, 2023
352 participants

Pygames

Online

If you love programming and gaming, this is the perfect opportunity to showcase your skills and have some fun!

$13,700 in prizes
Winners announced
1273 participants

HackKU 2023

Lawrence, KS, USA

36-hour hackathon hosted by the University of Kansas, where students can have the opportunity to innovate new ideas, discover different paths, and push the boundaries of technology

$14,480 in prizes
Apr 14 – 16, 2023
231 participants

HackPrinceton Spring 2023

Princeton, NJ, USA

Collaborate and build out brilliant, innovative, and impactful ideas

$6,200 in prizes
Mar 31 – Apr 2, 2023
225 participants

Catalyst 2023: UI/UX Designathon

Online

Catalyst is a virtual, UI/UX designathon that aims to challenge participants to explore how design, innovation, and community interact.

$1,200 in prizes
Winners announced
132 participants

{eHacks} 2023

St. Louis, MO, USA

Create innovative projects with a team, attend Tech Talks, and network with other attendees and sponsors!

$2,120 in prizes
Mar 3 – 5, 2023
58 participants