Turning debate into a video game.
Backed by leaders in education
Debating's home
Competitive discourse at the click of a button
Debate whenever you want against people across the globe
Compete
Globally with rankings
See how you stack up against the rest of the world in debate, both as an individual and as a school
Learn
How to think critically
Easily & learn how to debate by practicing with our custom AI
Engage with diverse perspectives to expand your viewpoint
Get feedback from every debate
Play
Seriously fun
Custom formats. Rapid rounds. Absurd topics.
More fun than arguing with your parents.
Win
The World's largest competitions
We host the world's largest debate competitions for you to compete in.
Almost every teenager loves to argue
We make debating accessible so they can do just that
Building your future
Debate creates successful students
Debating improves critical thinking, helps students understand what the world is like beyond their own, makes them more confident people, and teaches them how to understand opposing viewpoints.
90%
see significant improvements in their critical thinking ability
88%
can present for 5-minutes with with only 60 seconds of preparation thanks to their debate experience
2x
more likely to have leadership roles in their careers
70%
more likely to graduate college
Features
Debating will never be the same
Cosmos redefines debate into something almost any teenager can and wants to do.
AI Judging & Feedback
Our advanced custom-built AI models decide who win in Cosmos debates with over a 99% accuracy rate. They also give you feedback on how you can be even better next time!
Custom Formats
We cater to every form of traditional debate format, such as WSDC, BP, and Parliamentary. We also champion our own custom formats that are fast and fun, such as 15 minute chessclock debate.
(D)ELO Score
A reliable score to measure your debate skill. Matches you with people of equal skill level.
Practice with AI
Our custom debater ai matches your skill level so you have a challenging debate partner whenever you need it. It also makes learning how to debate 10x easier by helping you get up to speed without needing to face a human opponent.
Topic Matchmaking
We match you with topics you want to debate, catering to every academic level and seriousness.
Global Leaderboards
Live global leaderboards ranking you and your institution against the rest of the world.
Safety Features
From identify verification to moderation in every call, we obsess about keeping our users safe.
Demo Debate:
Player vs Player
February 2025
Our Inaugural World Championship Competition
This February, the world's largest debate competition is happening on the Cosmos platform to celebrate its launch.
14,820 waitlist applicants
Have already applied to participate before registrations even opened
Everyone can join, with separate categories for different skill levels and ages
$1000's
in prizes to be awarded, with registration fees going towards the prize pool
$50 early-registration fee
Early registration bonuses:
Get early access to Cosmos starting December and January.
Early registration comes with a complimentary annual subscription to Cosmos worth $60.
How it works
Throughout December and January, registered participants will be able to access an early release of Cosmos.
In February, the official tournament will begin. Registered participants will be able to compete in on-demand ELO debates that rank users over 3 weeks. Users are recommended to participate in at least give debates to be considered for the finals.
Age-groups
The minimum age to participate is 13. There is no maximum age.
The age categories are 13-15, 16-18, and 19 and above.
Formats
Our primary formats for this tournament will be WSDC and chess-clock (Cosmos's custom debate format). British Parliamentary and Public Forum tournaments are currently being finalized, and more formats may be added based on demand.
Final Tournament
The top 5% of users in each age category, skill level, and format will be invited to participate in a final knock-out tournament.
Users are encouraged to stay on the Cosmos platform to take advantage of their complimentary annual subscription.
Questions? Please use our contact form (including need-based scholarship inquiries)
Pricing
Choose the subscription that's right for you
Practice Subscription
The bare essentials of Cosmos to try out the platform.
Free
To use a limited version of Cosmos
Limited number of debates per week
Cannot compete in tournaments or get an official Cosmos ranking
Restricted access to Cosmos features
Individual Subscription
The full Cosmos experience for individuals
$60 Annually
or $10 per month
Unlimited debates, ranked and unranked
Full access to Cosmos features and training resources
Ability to compete in our global tournaments.
Access to special events with world leaders and VIP guests.
Institution Subscription
For debate organizations, schools, and clubs
All the benefits of our individual subscription plus…
Compete with other institutions on who has the best critical thinkers
Admin features to host private debate worlds for your members
VIP customer support
FAQ
Answering your most burning questions
Did we forget something? Contact us below
How do I stay up to date with Cosmos
Can I be an ambassador for Cosmos?
Is Cosmos safe for my child or student to use?
If I am a school or educational organization, can I get a subscription for a larger student body?
