

Ralphthon @SG supported by OpenAI
βRalphthon @Singapore
βπ May 17, 2026 Β· Meteora Office
βCo-host: Team Attention & Hashed
βPartner: Superteam SG, Meteora, Network School & AER Labs
βIf you want to touch your laptop, you put on a lobster costume first. π¦
βWhile your AI agent codes, you meet the builders who are shaping what comes next.
βThis isn't just a hackathon. It's your entry point into a top-tier network of Token Maxing engineers.
βWhile your agent works, you're in the room with speakers, builders, and conversations you won't find anywhere else.
βPrizes
βπ Grand Prize - $10,000 in API credits + 6 months of ChatGPT Pro
βπΌ Impact Track β $5,000 in API credits + 6 months of ChatGPT Pro Judged on the standard hackathon rubric: impact, technical execution, originality, and demo quality.
βπ οΈ Harness / Skills Track β $5,000 in API credits + 6 months of ChatGPT Pro Judged on agent engineering. Harness design, skills, spec writing, delegation craft.
ββ οΈ In-person only Β· Application required Β· Teams of 1β4
ββ οΈ This event is being filmed by a professional video crew. If you prefer not to appear on camera, please let us know at check-in β we'll provide a sticker for your name badge so the crew knows to keep you out of frame.
βπ Bring a power strip! Outlet access at the venue may be limited β bringing your own power strip helps you and your neighbors stay charged.
βJudges
βTo be announced β stay tuned.
β
βSchedule (Tentative)
β9:00 AM β Doors open Β· Check-in Β· Team building
β10:00 AM β Welcome & intro Β· How to run Codex "/goal" like a pro
β10:30 AM β Hacking begins Β· Spec writing & agent setup
β12:30 PM β Ralph begins. Agents run autonomously. If you want to touch your laptop, you put on a lobster costume first. π¦
β12:30 β 3:30 PM β While your agent works, you connect 3:30 PM β Laptops open Β· Review what your agent built & prepare your demo
β4:30 PM β Submission deadline
β6:30 PM β Finalist demos on stage
β7:30 PM β Awards
β~8:00 PM β Networking & after party
βOSS Partners
βAccumulated stars of 100K from OSS partners
βOmX (Oh my Codex)
βOmO (Oh my Opencode - OpenAgent)
βOmC (Oh my Claude Code)
βPrevious
βhttps://www.eomag.io/article/ralphthon
βRalphthon originated in Seoul as a 24-hour overnight format where builders set up agents, went to sleep, and woke up to what shipped. Then it scaled to SF with 150 builders, sponsored by OpenAI.
βNotable open-source contributions from previous editions:
βOuroboros β 1st place winner's harness (Seoul) Β· https://github.com/Q00/ouroboros Oh My Codex (OmX) β 2nd place winner's harness (Seoul) Β· https://github.com/Yeachan-Heo/oh-my-codex
βAbout
βOrganized by Team Attention. We run creative hackathons, open-source projects at the intersection of community and AI-native workflows.
βPrevious events:
βSkillthon (Anthropic-sponsored)
βRalphthon Seoul (OpenAI + Kakao Ventures)
βRalphthon SF (OpenAI + W&B)
βAll attendees must submit an application and be approved to attend.
βContact
βGB Jeong Β· linkedin.com/in/gb-jeong
βOpenAI Codex Ambassador Affiliation
βAt this event, weβll provide OpenAI credits to builders to use Codex in their projects. These credits are provided by the Codex Ambassador program offered by OpenAI and enable builders to leverage Codex with ease. Thank you OpenAI!