Primary features
Sei is a high-performance Layer-1 blockchain tailored for trading and DeFi, with EVM compatibility, fast finality, and built-in order book support.
- Twin-Turbo Consensus combining intelligent propagation & optimistic processing
- Optimistic Parallelization enabling concurrent transaction execution
- SeiDB: optimized storage layer for faster reads/writes
- Full backward-compatible EVM support; solidity/vyper tooling works
- Built-in Central Limit Order Book (CLOB) matching engine
- Frequent Batch Auction & order bundling for fair price discovery
Work principles
Sei works by splitting up work so many operations happen in parallel, separating ordering from execution, using performant storage, and embedding order matching deeply in the chain.
- Consensus focuses on ordering; execution happens asynchronously in parallel
- Transactions classified to detect conflicts for safe concurrency
- Storage architecture with SeiDB reduces state bloat & improves sync speed
- Order matching at the base layer reduces latency & prevents front-running
- Cosmos SDK + IBC allow interoperability with other chains & modules
- Autobahn protocol (in Sei Giga upgrade) for higher throughput & sub-second finality
User benefits
Users and developers benefit from Sei through speed, cost savings, fair trading, interoperability, and strong ecosystem potential.
- Very fast transaction finality (~ 400 ms or less) gives a near-instant experience
- Much higher throughput (thousands TPS; goal of 5+ gigagas throughput)
- Lower gas / transaction costs thanks to optimized execution & storage
- Fairer trading: CLOB, order bundling, batch auctions reduce MEV & slippage
- Easy porting of Ethereum apps thanks to EVM compatibility
- Ecosystem growth: many DeFi, NFT, and game projects are choosing Sei; users report liking the responsiveness and trading focus
