$SEI Sei is a layer-1 blockchain optimized for high-speed trading and decentralized finance (DeFi) applications.
Sei is transitioning to an EVM-only architecture, phasing out Cosmos compatibility to streamline development and enhance performance.
Sei’s total value locked (TVL) has surged to $363.1 million in Q1 2025, reflecting robust growth in its DeFi ecosystem.
Canary Capital has filed an S-1 registration statement with the U.S. Securities and Exchange Commission (SEC) to launch the first-ever ETF focused on SEI. Sei is a high-performance layer-1 blockchain built for speed, scalability, and seamless trading. Designed with DeFi and high-throughput applications in mind, Sei combines lightning-fast finality with Ethereum compatibility to offer a next-gen user and developer experience.With the introduction of Sei Giga, the network could launch a groundbreaking multi-proposer architecture—unlocking speeds of up to 200,000 transactions per second.Here’s a closer look at what sets Sei apart.What Is SEI Blockchain?Sei Blockchain is a layer-1 blockchain built on the Cosmos SDK, specifically designed for decentralized exchanges (DEXs) and high-frequency trading applications. However, Sei is currently undergoing a significant architectural shift. The network is transitioning to an EVM-only model, phasing out Cosmos compatibility to simplify development and enhance performance.
Sei Labs’ whitepaper for Sei Giga discusses a next-gen upgrade to the Sei blockchain that introduces the first multi-proposer EVM layer 1—designed to supercharge blockchain speed and scalability.
Key highlights:
Up to 200,000 TPS and 5 gigagas throughput
Sub-400ms finality for near-instant transactions
EVM-compatible, so Ethereum apps run seamlessly
Parallel block proposals via a new “Autobahn” consensus system
Custom-built execution engine, not a fork of Ethereum’s existing clients
