Aayush Bhan
Agentic AI Engineer
Get recycling right for an exact address.
Tech partner
25% of what goes in recycling bins doesn't belong there and contaminates the rest.
When recycling rules differ by municipality, change without notice, and hinge on details nobody remembers — this plastic yes, that one no, lids on or off, greasy pizza boxes never — residents guess, the wrong things go in the bin, and whole truckloads get landfilled, with 25% of what's collected not belonging there and contaminating the rest.
Sep 1 26’
Challenge start
Build (23 days left)
Oct 1 26’
Deadline & Winners
What to build
Your Mission
Build an AI-powered solution that answers 'which bin does this go in?' correctly for a resident's exact address.
Municipal apps already answer this for the cities that subscribe — but only those, and only until the rules quietly change. The gap is coverage and currency: working for the long tail of municipalities no app serves, and staying correct the day the rules move, with the answer easier than guessing — item in hand, answer in seconds.
How to build
Master the Challenge in 2 days.
Day 1
Find your personal angle on the problem.
Pick the smallest experience that helps someone answer 'which bin does this go in?' for an exact address. The goal is to make one of those experiences work well, not to solve every part of the problem at once.
- Resolves which municipality's rules apply
- Extracts item-level rules from official guidance
- Answers one-off questions in seconds at the moment of disposal
Pick your angle
Day 2
Prototype a minimal possible solution.
Choose the simplest format that fits the experience and audience. Build only what you need to test whether the idea works, people can use it, or the system can deliver.
- A no-code prototype in Lovable, Bolt, or v0
- A working app in Cursor
- A custom-coded solution — Exa can sit underneath as a retrieval layer crawling municipal recycling rules into address-specific guidance, answering item questions in real time, and catching rule changes
Pick your tools
Meet your mentors
Get a guidance from industry professionals.
Gio Masawi
Global Solutions Manager Gemini Enterprise, Agentic AI
Karina Assini Andreatta
Senior Data Scientist, AI Engineer
Casius Sibanda Lee
AI Developer Advocate
Geoffrey Rolin Jacquemyns
Claude Ambassador
Anubhav Pandey
AI Product Manager, Forward Deployed Engineer
Gain invaluable insights and support from seasoned experts who are passionate about driving positive change. Our mentors bring years of experience in tackling complex challenges, ready to share their knowledge and help you make a meaningful impact.
Sep 1 26’
Challenge start
Build (23 days left)
Oct 1 26’
Deadline & Winners
Jury Panel
Put your solution in front of hiring managers.
Receive valuable feedback and insights from hiring managers and industry experts.
Community recognition
Winner
TBD
The winning project will be featured on Drawerrr’s Winners page and receive support, and exposure to take the idea further.
Community recognition
Finalists
TBD
TBD
The two finalist projects will be featured on Drawerrr’s Finalists page and receive support to continue developing their ideas.
If you choose Exa as part of your tech stack, the winner and two finalists will receive Exa.ai credits, exposure through Exa’s developer community, and technical support to help develop their projects further.
Sep 1 26’
Challenge start
Build (23 days left)
Oct 1 26’
Deadline & Winners
FAQ
Everything you need to know about participating.
Who can participate?
The challenge welcomes participants from all countries and skill levels, making it ideal for students and career switchers. Whether you're an entry-level individual with no experience or a seasoned professional seeking to broaden your expertise, this challenge suits your needs. We encourage diverse backgrounds, including scientists, designers, engineers, analysts, policy makers, community leaders, PR experts, economists, marketers, educators, and other professionals.
Is there a participation fee?
No. It's free for all participants.
How to get started?
- Create an account.
- Choose a challenge you would like to work on.
- Follow guides to solve the problem (solo or in a team).
- Submit your solution.
- Get the feedback from sustainability experts and results at the beginning of the each month.
Is there any deadlines?
You can submit your case at any point. The challenge results will be announced in the first few days of each month on the winners' page.
Can I participate as part of a team?
Yes, participants can submit the case as a team. There is no maximum number of team members, but we recommend up to five members.
How to obtain assistance from mentors?
You can find available mentors under the Connect page in your account. Mentor help is optional and not required to participate in the challenge.
Who will be evaluating submissions?
Submissions will be evaluated by the Jury panel, which will assess cases based on Innovation, quality of work and potential Impact.
Are there any awards for the winners?
The best cases will be published on the winners' page, and the team will receive prizes from our sponsors.
Can participants apply multiple times?
Yes, participants can submit multiple cases, either solo or as part of a team.
What happens after the challenge?
All participants maintain access to community chats, mentors, and network.
After challenge
Take it to the next level.
The Challenge graduates get the opportunity to connect with grant providers and organizations looking to pilot projects and take them to the next level.