Bittensor (TAO): The Network Where AI Models Earn Coin Rewards
A blockchain market for AI work, with a 21 million cap
TAO is the base coin of Bittensor, a network that links building AI to blockchain rewards. Like Bitcoin, its supply is capped at 21 million, and it passed its first halving in December 2025.
1. An AI network modeled on Bitcoin
Bittensor is a project led by the Opentensor Foundation, co-founded by Jacob Steeves and Ala Shaabana, and it began in January 2021. It started without a pre-allocated share and lets anyone join and earn coins, as Bitcoin does. The idea is that people worldwide contribute computers and AI models and are paid for useful output.
TAO’s supply is capped at 21 million, and the rate of new issuance halves at set points, a structure borrowed from Bitcoin. On the Crypto Nation map, TAO is the city-hall tower of Bittensor City, because it is the base coin of the Bittensor chain itself.
2. Subnets and consensus
Bittensor holds many small markets called subnets. Each sets a task, such as text generation, image generation, data collection or prediction; miners (participants who produce AI output) submit results and validators (who score them) rate them. Miners compete, so better results earn more. The way scores are combined to split rewards is called Yuma Consensus.
New TAO is shared among the miners, validators and stakers of the subnets. Since ‘dynamic TAO’ (dTAO) arrived in February 2025, each subnet has its own token, and the split of new TAO depends on the market valuation and money each subnet token attracts. Creating a subnet requires TAO, and users spend or stake TAO to use subnet services.
3. Uses and key dates
TAO is used to pay for subnet services, register subnets, stake with validators and subnets, and vote on network matters. Some subnets offer real services such as running AI models (inference), training models and gathering data, making Bittensor a market for AI work inside a blockchain.
Key dates: launch in January 2021, a security incident in July 2024, dTAO in February 2025 and the first halving in December 2025, which cut the rate of new TAO in half. At the end of December 2025 Grayscale filed with the US SEC for a spot TAO exchange-traded fund, though a filing is not an approval.
4. Things to know
In July 2024 a malicious version of the official Python package spread, some users’ TAO was stolen and the network was paused for a time. It hit a developer tool, not the chain’s code, a reminder to check that anything handling wallet keys is official. Copying other validators’ scores and stake concentrating in a few large validators are also debated.
Subnet quality varies, and it is hard to tell real demand from reward-chasing; development also leans heavily on the Opentensor Foundation and a few teams. With issuance lower after the halving, the reward structure may be tested; subnet token valuations can follow market mood more than real results; and AI regulation and data or model copyright rules are further variables.
Written from information public up to October 2026. It does not recommend or rate any coin and is not investment advice. If something is wrong, please tell us through the contact page.