Cortex

Cortex Labs is a blockchain project aimed at on-chain AI, described by the project as the first decentralised world computer capable of running AI and AI-powered dApps on the blockchain. Its Cortex Virtual Machine is EVM-compatible with added support for on-chain AI inference, executing nontrivial models on the GPU instead of the CPU, and the deterministic inference engine Synapse guarantees identical inference results across heterogeneous computing environments.

At the contract level, Cortex adds machine learning support to smart contracts and dApps, letting developers use Solidity together with off-the-shelf models on the Cortex storage layer to build AI-enhanced applications, while the project frames itself as fostering an open-source ecosystem that rewards AI researchers for sharing models. The project also lists ZkMatrix, a zkRollup Layer 2 that aggregates batch transitions on the side chain into single main-chain transactions to raise throughput and cut the Endorphin fee per transaction, plus a blockchain explorer, wallet, mining and node-running tools.