Last Updated: March 2026
Sei is a Layer 1 blockchain optimized specifically for trading — claiming to be the fastest chain for exchange applications with 390ms finality. Built on Cosmos SDK, Sei targets the same DeFi trading niche as Injective but with a different technical approach.
History and Founders
Founded by Jeffrey Feng (ex-Goldman Sachs) and Jay Jog (ex-Robinhood). Backed by Jump Crypto, Multicoin Capital, and other major VCs. Launched mainnet in 2023. Sei V2 introduced parallel EVM execution for dramatic performance improvements.
How Sei Works
Sei uses a Twin Turbo consensus mechanism for 390ms finality. Sei V2 is the first parallelized EVM — processing multiple EVM transactions simultaneously rather than sequentially. This enables Ethereum-compatible smart contracts at much higher throughput. Built-in order matching engine optimized for exchange applications. See smart contract guide.
Tokenomics
Supply: 10B SEI. Staking: Delegated PoS. Utility: Gas fees, staking, governance. See tokenomics guide and staking guide.
Ecosystem
- DeFi: DragonSwap, Yei Finance, growing protocols. See DeFi guide
- Trading apps: Order book DEXs leveraging Sei’s speed
- Gaming: Fast finality benefits real-time gaming applications
Pros and Cons
- Pro: Fastest finality of any EVM chain (390ms)
- Pro: First parallelized EVM
- Pro: TradFi founder backgrounds (Goldman, Robinhood)
- Con: Very competitive space (Solana, Injective, Monad)
- Con: Young ecosystem needs more dApps and users
Frequently Asked Questions
Is Sei faster than Solana?
Sei claims 390ms finality vs Solana’s ~400ms. Both are extremely fast. Sei’s parallelized EVM is unique for Ethereum-compatible chains.
Is Sei a good investment?
Sei is a bet on trading-optimized blockchains. Strong VC backing but faces fierce competition from Solana and other fast L1s.
What makes Sei different?
Sei is the first parallelized EVM — processing multiple transactions simultaneously. Built-in order matching makes it ideal for exchange applications.
