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Zindi · Paid competitionZindi challenges
Online AI and data-science challenges hosted for organisations including Google, Microsoft, AWS and the ITU, with over $1,000,000 awarded in prizes to date. Fewer entrants than the giant platforms and the rules are explicitly open to the public, not just to one region — a leaderboard place here is easier to reach than on the biggest sites.
Dates & timeline
Prizes
- Over $1,000,000 in prizes awarded across the platform to date
- Google WAXAL ASR Challenge: $10,000 total — 1st $4,000, 2nd $2,500, 3rd $2,000
- That challenge also carried a separate $1,500 prize for the best African participant
- Prizes are paid by bank transfer; transfer fees are deducted from prizes over $500 and covered by Zindi below $500
- Winners are responsible for their own taxes, and the top three must provide ID, proof of residence and bank details
- Hosts challenges for organisations including Microsoft, Google, AWS, Google DeepMind and the ITU
- $1,000,000+ awarded in prizes
- Teams of up to four people, or enter as an individual
- Rules state all members of the public may participate
Why it's worth your time
Zindi runs online AI and data-science competitions on behalf of companies and institutions, describing itself as the largest network for data scientists and AI builders. Its own homepage lists Microsoft, Google, AWS, Google DeepMind and the ITU among the organisations it works with, and puts total prizes awarded at over $1,000,000. You enter alone or in a team of up to four, submit predictions against a hidden test set, and are ranked on a public leaderboard during the challenge and a private one at the close.
The platform grew out of an African data-science community and several challenges still carry a dedicated prize for the best African participant — but the competition rules themselves are explicit that "all members of the public are permitted to participate in any Zindi competition", subject only to the usual exclusions for staff of Zindi and the host company. The recent Google WAXAL ASR Challenge is a fair example of the shape: $10,000 total, split $4,000 / $2,500 / $2,000 for the top three, plus a separate $1,500 for the best African participant. That is a smaller field competing for real money — which is the whole argument for a student with no track record entering here before attempting the crowded flagship platforms.
Read two rules before you invest a month. Code cannot be shared privately outside your team — anything you share has to go to every participant through the platform. And winners of prize competitions must submit their solution for verification and assign worldwide copyright in it to Zindi, so do not build something you intend to commercialise later.
How to apply
Create a free account and open the competitions page — sort by closing date and rule out anything you cannot finish in the time left.
Read that challenge's own rules page for eligibility and prize terms; the platform rules are open to all, but each challenge sets its own conditions.
Get a baseline submission onto the public leaderboard in your first week — it costs little and it tells you whether the problem is tractable for you.
Watch the submissions-per-day cap; it is a real constraint on brute-force iteration and rewards thinking before submitting.
If you place, expect a code review — keep your solution reproducible from the start, not reconstructed afterwards.
Frequently asked questions
Can students in India enter Zindi challenges?
Yes. The competition rules state that all members of the public are permitted to participate in any Zindi competition, excluding Zindi and host-company staff, people who helped design the challenge, and their family members. Zindi began as an African data-science community and some challenges carry an extra prize for the best African participant, but that is an additional prize rather than a restriction on entry. Check the individual challenge page, since each one sets its own terms.
How much can you win?
Prize pools are set per challenge and stated in US dollars. The Google WAXAL ASR Challenge, for example, carried $10,000 total — $4,000 for first, $2,500 for second and $2,000 for third, plus $1,500 for the best African participant. Zindi's own homepage puts total prizes awarded at over $1,000,000.
Does it cost anything to enter?
The official competition rules state no entry fee. Note that if you win, international transfer fees are deducted from prizes over $500, while Zindi covers those fees on prizes under $500.
Do I keep the rights to my winning solution?
No. Winners of prize competitions must submit their solution for verification and agree to assign all worldwide copyright in the winning solution to Zindi. If you intend to build a product on the idea, do not enter it here.
Why enter here instead of the largest competition platform?
Contention. Zindi's challenges draw far smaller fields than the flagship platforms, so a top-20 or top-50 finish — the kind of result that is actually checkable by someone considering hiring you — is meaningfully more achievable while the prize money is still real.
Official links
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