AI hackathons (2026)
AI hackathons ask you to build something useful with machine learning, large language models or AI agents in a short time: a model that beats a leaderboard, a GenAI app, or an agent that completes real tasks.
Each listing shows the problem statements, the prize pool and whether you need to train a model or build an app on top of existing APIs. Looking for ideas? See hackathon project ideas and problem statements.
Open and upcoming
ML Challenge Hack4Hack 2026
A two-round machine-learning challenge. A 24-hour Round 1 starts when the problem statement and dataset go live on 22 Oct; the top 100 get a new problem and dataset for 3 days.
Datathon by Hack4Hack · Online · ₹1L in prizes · Free · Registration closes 20 Oct 2026
AgentX Hackathon 2026
Build AI agents that get real work done. 24 hours, online. Free to register.
Hackathon by Hack4Hack · Online · ₹3.75L in prizes · Free · Registration closes 30 Oct 2026
Frequently asked questions
What do I need to know for an AI hackathon?
For app-style AI hackathons, Python or JavaScript and an LLM API are enough. For ML competitions you should be comfortable with pandas, scikit-learn or PyTorch, and evaluating a model on a validation set.
Can I use ChatGPT, Claude or other AI tools?
Most AI hackathons allow AI coding assistants and APIs; some restrict pre-built solutions. The rules tab on each hackathon page says what is allowed.
Do I have to pay to register on Hack4Hack?
No. A Hack4Hack account is free, and most hackathons are free to enter. When an organizer charges a fee, it is shown on the hackathon page before you register.