Bangkok – Global technology company Sea and OpenAI are bringing the Sea x OpenAI Regional Codex Hackathon Series to Thailand, with the one-day hackathon taking place in Bangkok on the 21st of November 2026.
Launched in Singapore, with its second edition held in Taiwan, the regional series brings together developers, students, startups, and technology builders to gain hands-on experience with emerging AI technologies, exchange knowledge, and explore how AI can be applied to address real-world needs. The series will also make stops in Vietnam, Indonesia, and Malaysia as it reaches developer communities across Asia-Pacific.
The Thailand edition comes amid growing momentum around AI in the country, as Thailand continues to invest in developing its technology ecosystem and expanding its pool of AI talent.
According to OpenAI’s data, Thailand ranks among the top 20 for ChatGPT and Codex weekly active users globally. Weekly active usage of Codex has grown more than 350X since the start of the year.
Through the series, Sea and OpenAI aim to foster collaborative learning, strengthen connections across developer communities, and support continued innovation at both the local and regional levels.
Applications are now open until October 23rd, 2026
Developers, students, startups, and technology builders in Thailand with experience in AI coding and building production-grade software are invited to apply in teams of three to four.
Up to 40 teams will be selected to participate in the one-day hackathon, based on the quality of their applications.
During the hackathon, participants will use Codex, OpenAI’s AI-powered coding solution, to develop practical and responsible solutions for consumers, businesses and communities. Participants will have the freedom to define the challenges they want to address, provided their projects align with one or more of the following core build directions:
Autonomous & Adaptive AI: Build agents that can be trusted to operate without constant human oversight – handling the unexpected and staying reliable when real-world conditions change.
AI-Native Products & Operations: Many products today use AI as an add-on. This direction is about what products and operations look like when AI shapes them more fundamentally.
Deep Domain AI: Build AI that goes deep in a specific field – reflecting how work is actually done, not a simplified version of it. The value comes from genuine domain understanding, not general capability.
Beyond building their projects, participants will also have opportunities to exchange ideas and learn from OpenAI Codex experts, technical mentors, and industry leaders. The event will welcome Mr. Sidharth Sharma – Go-To-Market Director, ASEAN at OpenAI, Mr. Tadcha Anunrojwong – Director, Head of Regional Business Intelligence & Financial Strategy at Shopee Thailand, alongside Dr. Napat Jatusripitak – CEO of Siametrics and ViaLink, who will bring perspectives from across technology and industry.
Top-performing teams will receive OpenAI API credits to support the continued developments of their ideas beyond the hackathon:
1st Place: $30,000 USD in OpenAI API credits
2nd Place: $15,000 USD in OpenAI API credits
3rd Place: $5,000 USD in OpenAI API credits
All members of the top five teams will also receive one year of ChatGPT Pro.
*All participants will receive an official E-Certificate of Participation from Sea and OpenAI
Event Details:
Date: November 21, 2026
Time: 8:30 am to 9:00 pm
Venue: Shopee Office (Thailand), Singha Complex, 25th Floor
For more information and registration details, please visit: https://luma.com/39zve8ph