Bittensor

Bittensor is an open-source protocol that powers a decentralized, blockchain-based machine learning network. Instead of AI models being trained and owned by a handful of companies, Bittensor creates an open marketplace where machine learning models collaborate and compete, earning rewards in the network's native token, TAO, according to the informational value they contribute to the collective.

How the network works

Bittensor runs on its own Layer 1 blockchain and organizes activity into specialized subnets, each dedicated to a particular machine-learning task such as text generation, data scraping, or model inference. Within each subnet, miners provide the actual AI work while validators evaluate the quality of that work. Rewards in TAO flow to participants in proportion to the value they add, as judged by the network's incentive mechanism. TAO also grants access: users spend it to extract information and services from the network.

Supply and economics

TAO deliberately mirrors Bitcoin's monetary design. It has a hard cap of 21 million tokens, new TAO is issued as block rewards to network participants, and issuance is subject to periodic halvings that slow the rate of new supply over time. Roughly 9.6 million TAO are currently in circulation. This scarcity model is unusual among AI-related tokens, most of which have larger or uncapped supplies.

Role in the ecosystem

Bittensor sits at the intersection of two major crypto narratives: artificial intelligence and decentralized physical infrastructure (DePIN). Its vision is a pure, permissionless market for machine intelligence, where anyone can contribute compute or models and be compensated transparently, and where ownership of the network accrues to those who build it rather than to a central company. The project is stewarded by the Opentensor Foundation, and its subnet architecture has grown into a diverse ecosystem of independent AI services settling value in TAO.