Chain Guides5 min read
Sei Network: The Parallelized EVM Chain
Discover Sei — a Layer 1 blockchain with parallel EVM execution designed for high-speed DeFi and trading.
What Is Sei?
Sei is a Layer 1 blockchain that combines the Cosmos SDK with a parallelized EVM. It is designed from the ground up for trading applications, offering sub-second finality and optimistic parallelization.
Key Technical Innovations
Parallel Execution
Sei processes independent transactions simultaneously instead of sequentially. If two swaps do not touch the same liquidity pool, they execute in parallel.Twin Turbo Consensus
Optimized consensus protocol that reduces block times to ~380ms and time-to-finality to ~380ms — the fastest among EVM-compatible chains.SeiDB
A purpose-built storage engine optimized for blockchain state access patterns, reducing read/write latency.Sei v2: The Parallelized EVM
Sei v2 introduced EVM compatibility while maintaining Cosmos SDK benefits:
- Optimistic parallelization: Transactions execute concurrently, rolling back conflicts
- EVM + CosmWasm: Support for both Solidity and CosmWasm smart contracts
- Shared state: EVM and Cosmos contracts can interact seamlessly
Ecosystem
- DragonSwap: Leading DEX on Sei
- Yei Finance: Lending protocol
- Silo: NFT marketplace
- Astroport: Multi-chain DEX deployed on Sei
Performance Numbers
- Block time: ~380ms
- Finality: ~380ms
- Throughput: 12,500+ TPS
- Gas costs: Fractions of a cent
Trading on Sei Through Alkizen
Access Sei high-speed DeFi through Alkizen. Bridge assets from any chain and trade with near-instant confirmation times.