TSIN × OpenAITSIN × OpenAI
28 November 2026, Imperial College London
TSIN × OpenAI

CODEXHACKATHON

Build real-world solutions for Thailand with AI.

Win $850 of OpenAI credit and ChatGPT Pro. Everyone who takes part gets $100 of credit, free.

Organised by
Thai Society
Innovation Network
With
OpenAI
Sponsors and track partners
AISTechsauceARISE by INFINITASSEA Bridge
Hosted at
Imperial College London
Online kick-off
Friday 27 November, 18:00 to 20:15

Building with Codex workshop, run by OpenAI engineers. Plus a 15-minute video from each track partner. Highly encouraged.

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01

Prizes

Every participant gets $100 of OpenAI credit, free.
Prizes on top, provided by OpenAI and shown as their dollar value. Three overall places.
The top 5 teams also get an exclusive session with companies in Thailand to present their solution and explore building it further.

First
$850of OpenAI credit + ChatGPT Pro
Second
$400of OpenAI credit + ChatGPT Pro
Third
$200of OpenAI credit + ChatGPT Pro
More detail

Prize amounts are OpenAI API credit shown as their dollar value, for building on after the event. Every participant also receives $100 of credit on registration. ChatGPT Pro is one subscription per overall placing. How prizes split across a team is confirmed with the partner before the day.

Overall places are judged across all tracks. The top 5 teams present to relevant companies in Thailand after the event, to explore further development and collaboration.

TSIN members at an event in London
TSIN, London.500 Thai students across 30 UK universities.
02

Requirements

100 places at Imperial. When they are gone, they are gone.

  • Who
    University students, any subject, any country
  • Teams
    1 to 5 people, any nationality

    A Thai teammate is highly recommended for local context.

  • Solo
    Apply anyway. We match you into a team through Luma
  • Code
    Not required. The Codex workshop on Friday 27 November sets you up
More detail

Every team passes six checks before the main day. All pass or fail, none scored.

  • Every member is currently enrolled as a university student, in Thailand or overseas.
  • Team size is 1 to 5. No nationality restriction. A Thai member is highly recommended for local context.
  • All members share a working language, Thai or English.
  • Registration complete before the deadline.
  • Nobody is on more than one team.

Solo matching uses what you tell us at registration: strongest area (technical, research, design, business, pitching), coding confidence, hackathon experience, and what you want from the hackathon. We spread skills and experience across teams and group people with similar goals.

03

Backed by OpenAI

  • Workshop
    Building with Codex, run by OpenAI engineers

    Online, Friday 27 November, 19:00 to 20:00. You leave with Codex shipping code on your own repository.

  • Mentors
    Mentor drop-ins on Saturday, 13:30 to 15:30, in person and online

    Fifteen minutes per team. Booking opens at 13:00.

  • Prizes
    Credits and ChatGPT Pro from OpenAI
  • Organiser
    Thai Society Innovation Network

    London community of 500 Thai students across 30 UK universities.

More detail

Building with Codex, Friday 27 November, 19:00 to 20:00, online, run by OpenAI engineers. Codex set up on a team repository, prompting for scoped changes, reviewing and testing generated code, data and API glue. You leave with Codex running on your own repository and one feature shipped through it.

Pitch and demo, Saturday 15:30 to 16:00. Deck structure mapped to the judging criteria, demoing a partly built product honestly, the thirty-second problem statement, handling questions. You leave with a deck skeleton and a written five-minute demo script.

Mentors take fifteen-minute drop-ins per team from 13:30 to 15:30 on Saturday, in person or online. Booking opens at 13:00 through the QR code in the Mentors section.

04

The brief

Three tracks, each a real problem in Thailand. Pick one, build a working solution on Saturday, pitch it that evening. Track partners AIS, Techsauce, ARISE and SeaBridge brief each track.

4.1

Smart Cities and Global Connectivityเมืองอัจฉริยะ

AISTechsauceHow can we leverage AI to solve urban challenges, improve essential services, and strengthen Thailand's connectivity with global markets?

Pick one of two sub-challenges:

  • Market Entry and Business Connectivity
  • Smart Urban Services
4.2

Financial Inclusionการเงินที่ทั่วถึง

ARISE by INFINITASHow can we use AI to overcome barriers to financial access, improve financial decision-making, and create more inclusive economic opportunities for underserved communities and small businesses in Thailand?

4.3

Health and Wellnessสุขภาพ

SEA BridgeHow can we use AI to address everyday health and wellness challenges, promote preventive care, and make reliable health information and support more accessible to people in Thailand?

More detail

The hackathon asks three things of every team: identify a real problem in Thailand, build a practical solution using Codex, and show how it could create impact beyond the competition.

Smart Cities and Global Connectivity

Pick one of two sub-challenges:

  • Market Entry and Business Connectivity. Local market insight, finding opportunities, market expansion, and matching global businesses with Thai companies, partners and organisations.
  • Smart Urban Services. Transport, mobility, energy, waste management and public services.

Out of scope: solutions that need large-scale hardware or city-level infrastructure, and generic business tools with no clear link to urban innovation or business opportunities in Thailand.
Difficulty: medium to high. May involve AI matching, market intelligence, geospatial analysis or data integration. Must work as a prototype demo.
Track partners: AIS and Techsauce.

Financial Inclusion

In scope: access to credit, savings and insurance for informal workers, small businesses and unbanked households; financial literacy; debt and cash-flow management; tools for community lenders and cooperatives.
Out of scope: trading or investment apps for retail investors, crypto, and products for people banks already serve well.
Difficulty: medium. Light engineering, heavy domain research. You need to show you understand real borrower behaviour and interest mechanics.
Track partner: ARISE.

Health and Wellness

In scope: health, wellbeing and longevity through three areas. Molecule (food, nutrition and lifestyle), Movement (physical activity, sport and mobility), and Music and Sound (sleep, mood, mental wellbeing and relaxation).
Out of scope: anything that issues a diagnosis or treatment as a medical authority, or that depends on clinical data or regulatory approval to function.
Difficulty: entry level. Buildable with AI-assisted development and no coding background. Winning here comes down to impact and originality.
Track partner: SeaBridge.

05

Schedule

Hackathon day: Saturday 28 November, Skempton 164, Imperial College London. Kick-off: Friday 27 November, online.

Friday 27 November

Online. Get to know the theme and the tools before Saturday. Attendance highly encouraged.
18:00
18:10
Opening remarksHow the evening runs. The theme.
18:10
19:00
Track insight sessionA 15-minute video from each track partner: AIS, Techsauce, ARISE and SEA Bridge.
19:00
20:00
Building with Codex workshopRun by OpenAI engineers. Codex on your own repository, one feature shipped.
20:00
20:15
Closing remarks

Saturday 28 November

Skempton 164, Imperial College London. In person.
10:00
10:30
RegistrationCheck-in. Remaining solo participants placed.
10:30
11:00
Opening ceremonyRules, tracks, judging criteria. Booklet released.
11:00
11:30
Track briefingsTen minutes per track from the track experts.
11:30
12:30
Hacking starts
12:30
13:30
LunchBrought to teams. Building continues.
13:30
15:30
Mentor drop-inFifteen minutes per team, in person or online.
15:30
16:00
Pitch and demo workshopCutting scope to something you can show. Deck skeleton and demo script.
16:00
17:30
Hacking continues
17:30
18:00
Code freezeDeck and repository submitted.
18:00
18:30
Tech checksJudges read the decks.
18:30
19:00
PitchesFive minutes, then three minutes of questions. Grouped by track.
19:00
19:30
Demo fair and awardsJudges deliberate while teams demo to each other.
06

Judging

Deck and repository by 17:30 Saturday. Five criteria, each a fifth of the score, each marked 1 to 10. Eligibility is checked separately as pass or fail.

  1. 20%
    Real-world impact

    Does it address a problem that matters, with clear users or beneficiaries. Could it be adopted, could it scale, would it last. Any financial or economic effect.

  2. 20%
    Innovation and creativity

    Is the core idea original. Does the team see an existing problem from a new angle. Is technology used in a way we have not seen before.

  3. 20%
    Use of Codex

    How effectively Codex was used across the build. Coding, iteration, debugging, testing, and the technical-adjacent work around them.

  4. 20%
    Technical implementation

    Quality and structure of the build. Difficulty. Does it work, is it complete, is the code and architecture sound.

  5. 20%
    Pitch and communication

    Clarity and structure of the pitch, quality of the demo and materials, how the team handles questions.

  • What you submit
    Problem statement, target users, proposed solution, working prototype, use of Codex, potential impact, scalability

    A pitch deck and a repository that between them cover all seven.

  • Score bands
    9 to 10 outstanding. 7 to 8 strong. 5 to 6 good. 3 to 4 fair. 1 to 2 needs improvement
More detail

Stage one is the eligibility check, pass or fail, listed under Requirements. Stage two is the scored judging below. Each criterion is marked 1 to 10 and carries 20% of the total.

  • Real-world impact. Potential to address a meaningful problem; relevance to the chosen problem statement; clearly identified users or beneficiaries; potential for adoption, scalability and long-term value; potential financial or economic impact.
  • Innovation and creativity. Originality of the core idea; creativity of the approach; a fresh perspective on an existing challenge; how effectively technology or other resources are used in a new way.
  • Use of Codex. Effectiveness and practicality of Codex in the development process: coding workflows, developer tasks, iteration, debugging, testing and other technical or technical-adjacent work.
  • Technical implementation. Quality and structure of the implementation; technical difficulty; functionality and completeness; code quality and architecture; evidence of meaningful technical development.
  • Pitch and communication. Clarity and structure of the pitch; quality of the demo and supporting materials; ability to explain the problem and solution; responsiveness to judges' questions; overall professionalism.

Score bands. 9 to 10 outstanding, exceptional with very limited weaknesses. 7 to 8 strong, clear quality with some room to improve. 5 to 6 good, meets expectations with notable gaps. 3 to 4 fair, partially meets expectations. 1 to 2 needs improvement.

Submission. Each team submits a pitch deck and a repository by 17:30 on Saturday covering: problem statement, target users, proposed solution, working prototype, use of Codex, potential impact, scalability.

07

Mentors and judges

Track experts brief each area on Saturday morning. Mentors take fifteen-minute drop-ins through the afternoon. Judges score from technical and industry perspectives. Names and photos in November.

AISAISSmart Cities and Global Connectivity partner
TechsauceTechsauceSmart Cities and Global Connectivity partner
ARISE by INFINITASARISEFinancial Inclusion partner
SEA BridgeSeaBridgeHealth and Wellness partner
To be announcedMentors
To be announcedJudges

Book a mentor

Scan on the day, or tap, and type your team name into a free slot. Two per team. Booking opens at 13:00 on Saturday. The mentor's meeting link is on the same sheet.

More detail

Three groups support the teams. Track experts give the ten-minute briefings on Saturday morning and share insight into each challenge area. Mentors, in person or online, take fifteen-minute drop-ins per team from 13:30 to 15:30. Judges evaluate from technical and industry perspectives and deliberate during the demo fair.

Names, roles and photos are published here in November. Mentor booking opens at 13:00 on Saturday, 30 minutes before drop-ins start, through the QR code above.

08

Venue

Hackathon day is in Skempton 164, Imperial College London, South Kensington Campus, London SW7 2AZ. Nearest tube South Kensington. Friday's kick-off is online.

More detail

Imperial College London, South Kensington Campus, Exhibition Road, London SW7 2AZ. The hackathon on Saturday 28 November is in Skempton 164, in the Skempton Building. The Friday 27 November kick-off and Codex workshop are online, with the link sent to registered participants. Directions are emailed before Saturday.

Nearest tube: South Kensington (District, Circle, Piccadilly), about eight minutes on foot via the subway under Exhibition Road. Gloucester Road is a similar walk. Buses 9, 14, 49, 52, 70, 74, 345, 360, 414, 430 and C1 stop on or near Exhibition Road.

09

Questions

What does $850 of credit mean?
OpenAI API credit worth $850, for building after the event. Everyone gets $100 just for taking part. How a prize splits across a team is confirmed before the day.
Do I need a team?
No. Register on your own and we match you into a team through Luma before the event. Anyone still solo is placed at check-in on Saturday.
Do I need to be able to code?
No. Friday's online workshop sets Codex up on your repository. One teammate who is comfortable with code helps, since technical implementation is a fifth of the score.
What tools can we use?
Codex for the build, since a fifth of the score is how you used it. Any language, framework or dataset. The work has to happen during the event. If it builds on an existing startup idea of yours, say so in the submission.
What do we submit?
A pitch deck and a repository by 17:30 on Saturday. Pitches are five minutes plus three minutes of questions.
Is it free? Is there food?
Free, with lunch on Saturday. Travel is not covered.
Who do I ask?
tsin.london2023@gmail.com or @tsin_official on Instagram.

100 places.

Apply as a team or on your own.

Submissions open here on Saturday 28 November and close at 17:30.