Explained simply · numbers read from the chain October 13, 2026
How Bittensor works, explained simply
Bittensor is a giant set of contests that pays people anywhere in the world, in a coin called TAO, to build useful AI. Nobody's in charge of it. The rules run themselves.
Picture a huge fair
Imagine a fair with 128 tents. Each tent runs its own contest. One tent pays for the fastest AI answers. Another pays for the freshest social media posts. Another pays for the best weather forecast.
In every tent, people compete to do the job. Judges score them. The best ones win prize money, and the fair itself prints that prize money on a fixed schedule. Each tent is what Bittensor calls a subnet, and the prize money is TAO.
- A tentA subnetOne contest for one kind of AI work
- ContestantsMinersThey do the work to win prizes
- JudgesValidatorsThey test and score the contestants
- The tent's organizerSubnet ownerSets the rules of the contest
- Prize moneyTAOPrinted by the fair every 12 seconds
- Tickets you drop in a tentStakingHow you back the tents you believe in
What problem is it trying to solve?
Right now a handful of big companies build the best AI. They decide what it costs, what it's allowed to say, and who gets to use it. If you have a powerful computer or a clever idea, there's no way to plug in and get paid.
Bittensor tries to change that. Anyone can join a contest and earn, the work is checked by the network instead of a boss, and much of what gets built is open for anyone to use. It's a cathedral versus a bazaar, which is where this site gets its name.
How does one subnet work?
Every tent has the same four roles, and the prize moves through them in a loop.
- Step 1The ownersets the contest
Someone pays a fee in TAO to open a tent and writes the rules: what the job is and how good work gets scored. On Chutes (subnet 64), the job is running AI models fast and correctly.
- Step 2The minersdo the work
Anyone with the right computer can enter. They compete to do the job best: answer AI requests, collect social media posts, rent out a GPU, forecast the weather.
- Step 3The validatorsjudge the work
Judges test every miner, again and again, and score them. They need TAO staked behind them to judge at all, and a judge whose scores sit far from the other judges earns less.
- Step 4The chainpays the winners
About once an hour, the scores are combined and the prize money is paid out automatically. No company decides who gets paid.
Then real customers can buy what the winners make. That's the part that matters most, and the part most subnets haven't reached yet.
Where does the prize money come from?
The network creates new TAO every 12 seconds, out of thin air, like a fair that prints its own prize tickets. It used to be 1 TAO each time. On December 15, 2025 that was cut in half, the first halving, so now it's half a TAO, about 3,530 TAO a day.
There will only ever be 21 million TAO, the same cap as Bitcoin. About 11.61 million exist so far.
11.61M of 21M TAO issued, 55%.
The halving staircase
Every so often the amount printed per block gets cut in half, so new TAO gets scarcer over time. The next step down is expected around the end of 2029, but it depends on how much TAO gets issued, so the date is an estimate.
Who gets the prize money?
Inside each subnet, the new TAO is split three ways, every time.
- 41% miners, for doing the work
- 41% validators and stakers, for judging it, shared with anyone who staked TAO behind them
- 18% the owner, for running the tent
How does a subnet get a bigger share?
Since February 2025, every subnet has its own token, called an alpha token. When you stake TAO into a subnet, you swap it for that subnet's alpha. Think of it as dropping your tickets in the tent you believe in.
The more people do that, the higher the subnet's token price goes. Since June 2026, each subnet's share of new TAO follows that price, averaged over time. Popular tents get more prize money.
The rule has changed before. From November 2025 to June 2026, the share followed how much TAO people were putting in versus taking out. So the rules aren't set in stone, and popular isn't always the same as useful.
What happens to subnets that don't work?
There are only 128 spots. When a new team wants in, the weakest subnet can lose its spot. In the last 12 months, 42 of the 128 spots changed hands. Subnets with nothing working right now get almost none of the new TAO.
- Ready to use
- Coming
- Research
- Inactive
The real 128 slots today. Watch one change hands every few seconds.
Why should anyone care?
Some things really are cheaper
Social media data from Bittensor subnets costs $0.15 per 1,000 posts. X charges $5 for the same 1,000 through its own API.
AI models sold by the drink
Chutes (subnet 64) serves open models like DeepSeek and Qwen to developers, often through OpenRouter, where many users never know Bittensor is underneath.
Results, not effort
Ormas (subnet 76) gives a fixed price for a code change, and you only pay if it passes your test.
Anyone can join in
If you have the skills or the hardware, you can pay the entry fee, compete and earn, without asking anyone's permission.
Nobody controls it
For people who don't want all of AI in a few companies' hands, that's the point.
What's the catch?
The prize money is new coins
If TAO's price drops, the prizes shrink, and miners may leave.
Most subnets don't sell anything yet
Only 57 of 128 have a product an outsider can sign up for today.
Real customer money is still small
One outside estimate puts the yearly customer revenue of Chutes, the biggest subnet, at $1.3 to 2.4 million, which is small next to the TAO it receives. (Pine Analytics)
The rules keep changing
How prize money is split between subnets changed twice in a year.
None of this is financial advice.
Words you'll hear
- TAO
- Bittensor's coin. It's the prize money, and there will only ever be 21 million.
- Subnet
- One tent at the fair: one contest for one kind of AI work. There are 128 right now, numbered SN1 to SN128.
- Miner
- Someone who enters a subnet's contest and does the work to earn TAO.
- Validator
- A judge who scores miners. Validators need TAO staked behind them, and judges far from the others earn less.
- Subnet owner
- The person or team who opened the subnet and wrote its rules.
- Staking
- Putting your TAO behind a validator or a subnet to earn a share of the rewards. It's how ordinary holders take part.
- Alpha token
- Every subnet has its own token. Staking TAO into a subnet swaps it for that subnet's alpha. This started in February 2025, an upgrade called dynamic TAO, or dTAO.
- Emissions
- The new TAO the network creates every 12 seconds and hands out as prize money.
- Root (subnet 0)
- Where people stake TAO without picking one subnet. About 5.5 million TAO sits there today.
- Halving
- The amount of new TAO gets cut in half at set points, like Bitcoin. The first halving was December 15, 2025.
So is it working?
Bittensor works if the contests make things people actually pay for. Right now, 65% of the TAO staked into subnets sits in ones that do.