OpenAI Codex Community Hackathon - Bengaluru
Codex Community Build Hackathon – Bangalore
Welcome to Bangalore’s Codex Community Build Hackathon.
Join us for a focused morning of building with Codex.
Build something new, improve an existing project, or experiment with agentic software-development workflows using Codex. Explore parallel tasks, Skills, worktrees, and other ways to build with greater speed and ambition.
This is a hands-on community hackathon designed to keep the room collaborative, high-signal, and focused on shipping.
Who this hackathon is for
This hackathon is designed for developers and builders curious about Codex and agentic software engineering.
No prior experience with Codex is required, although basic familiarity with software-development tools is recommended. We will begin with a short introduction to help everyone get started.
How it works
Participants may work individually or in teams of up to four members.
You could:
Start a new project from scratch
Extend an existing or open-source project
Prototype a developer tool or agent workflow
Experiment with Codex Skills and parallel tasks
Improve an existing project using Codex
Given the limited build time, participants are encouraged to arrive with a project idea or an existing repository they would like to develop further.
Suggested build directions
Projects may explore areas such as:
Agentic Coding: Developer tools and workflows that maximise leverage from Codex
AI-Native Developer Experience: Interfaces and workflows designed around coding agents
Domain Agents: Agents designed for specific industries or real-world constraints
Multimodal Applications: Applications that work across text, images, audio, or other modalities
Agent Evaluation: Tools for measuring, debugging, and improving agent performance
Open Source: Contributions or improvements to existing open-source projects
These are suggestions rather than restrictions. Participants are welcome to build in any direction where Codex plays a meaningful role.
Project demos and judging
Participants will have an opportunity to present what they built during a short project showcase.
Each participating team should be prepared to share:
A brief explanation of the problem
How Codex was used
A short product demonstration
A GitHub repository or project link, where applicable
Projects will be reviewed based on what was built, how meaningfully Codex was used, and the clarity of the final demonstration.
Prizes
To be announced soon.
Venue and event partner
This hackathon is being hosted with support from Dodo Payments, the billing and payments platform for AI-first and SaaS companies.
Dodo Payments helps digital businesses sell across 220+ countries using 80+ currencies and 40+ local payment methods, while handling tax compliance, fraud, and chargebacks. It also supports usage metering, credit-based billing, and subscriptions.
Dodo Payments will also be bringing a few surprises for builders, which will be announced soon.
For security and venue access, the exact location will only be shared with confirmed participants.
Event details
📅 August 16, 2026
🕐 10:00 AM to 2:00 PM
📍 Bangalore
🏢 Exact location shared with confirmed participants
Registration
Due to venue capacity, registration is subject to approval.
Please complete the registration form carefully. Incomplete or inaccurate submissions may not be admitted.
When participating as a team, each member must register individually and receive confirmation.
Community note
This hackathon is organised by Mayank Raj and Tushar Mehta in their capacity as Codex Ambassadors.
Schedule
10:00–10:20 AM — Registration and networking
10:20–10:35 AM — Welcome and hackathon briefing
10:35–11:00 AM — Introduction to Codex and builder walkthrough
11:00 AM–1:15 PM — Focused building session
1:15–1:45 PM — Project demonstrations and judging
1:45–2:00 PM — Closing remarks, announcements, and group photos
What to bring
A laptop and charger
A GitHub account
Your preferred development environment
A project idea or existing repository, if possible
Curiosity and a willingness to build