A core challenge in the blockchain industry is the trade-off between performance and compatibility. Ethereum's sequential processing model, while foundational for smart contracts, struggles with the high transaction throughput required for mainstream applications.
While Layer 2 solutions and alternative Layer 1 blockchains have emerged to address this, they often introduce new compromises, such as persistent bottlenecks or sacrificing compatibility with the Ethereum Virtual Machine (EVM). This forces a difficult choice on developers: build for performance or for access to Ethereum's mature ecosystem.
The Sei Network is designed to address this challenge directly, with an architecture optimized to provide high throughput while maintaining full EVM compatibility.
What Is The Sei Network?
Sei is a high-performance Layer 1 blockchain combining parallel execution, advanced consensus mechanisms, and optimized storage to achieve web2-level throughput without sacrificing decentralization.
According to Sei, the network currently supports up to 12,500 transactions per second (TPS) through parallel execution and achieves finality in under 400 milliseconds. The platform maintains full EVM compatibility and, as of the latest data, holds over $600 million in Total Value Locked (TVL) with more than 800,000 daily active addresses.
Looking ahead, the "Sei Giga" upgrade is designed to significantly increase these metrics, targeting a throughput of 5 gigagas per second — a projected 50x improvement over current EVM chains — and over 200,000 TPS via the new Autobahn consensus protocol.
Who Is Behind Sei Network?
Jeffrey Feng and Jayendra Jog co-founded Sei Labs in 2021, bringing complementary expertise from traditional finance and technology. Feng's background at Goldman Sachs and Coatue Management provided an understanding of trading systems and market infrastructure. Jog's engineering experience at Robinhood brought expertise in building high-performance consumer applications.
The team secured over $30 million in funding from leading crypto investors, including Multicoin Capital, Jump Crypto, Coinbase Ventures, and Delphi Digital.
What Is Sei For?
Sei's high-performance EVM is designed to support application categories that require high throughput, such as real-time gaming or social platforms, while maintaining full compatibility with existing Ethereum tooling and infrastructure.
Consumer Applications
While traditional blockchains that process 10–100 transactions per second make it difficult to build responsive consumer applications, Sei's reported performance of over 12,500 TPS with sub-400ms finality is designed to enable more demanding use cases.
- Real-time gaming with instant state updates.
- Social platforms capable of supporting thousands of concurrent users.
- Interactive entertainment with complex user interactions.
- High-frequency DeFi protocols that require rapid execution.
Developer Experience
Sei is designed to provide the performance of a custom blockchain while maintaining full compatibility with Ethereum's established developer ecosystem. Developers can deploy existing smart contracts written in Solidity or Vyper without any changes, using familiar tools like MetaMask, Remix, and Hardhat.
Its architecture is optimized for parallel execution, where transactions run concurrently when possible and sequentially when necessary, ensuring existing decentralized applications are backward compatible.
Institutional Infrastructure
Sei's architecture is designed to address enterprise requirements by providing deterministic performance through its optimized consensus and execution layers. It offers censorship resistance via multi-proposer block production and supports large professional node operators through scalable validator economics.
The network has attracted over 150 projects since its mainnet beta launch, spanning DeFi protocols, NFT marketplaces, gaming platforms, and infrastructure providers.
What Is SEI Token?
As the native token of the Sei network, SEI serves several critical functions: payment of transaction fees, securing the network through validator staking (with a 21-day unbonding period), participating in governance proposals, and acting as native collateral within DeFi applications.
The total supply is 10 billion SEI, allocated as follows: 48% to the Ecosystem Reserve, 20% to the team, 20% to private sale investors, 9% to the Foundation, and 3% to community programs. The project has conducted multiple community airdrops specifically structured to exclude large holders.
How Does Sei Network Work?
Sei's performance is derived from foundational architectural changes across its consensus, execution, and storage layers. Each component is specifically optimized to maximize throughput while maintaining security and decentralization.
Parallel Execution Engine
The core of its performance is a parallel execution engine that employs optimistic parallelization. Unlike traditional blockchains that process transactions one by one, Sei runs multiple transactions simultaneously. If a conflict is detected, only the specific conflicting transactions are re-executed sequentially, maintaining state consistency without halting the entire process.
The network uses advanced bytecode analysis to predict transaction dependencies and minimize conflicts. According to Sei's documentation, this approach is projected to deliver up to 40x higher throughput than purely sequential processing.
Asynchronous Execution
Sei further enhances throughput with asynchronous execution, which decouples consensus from state computation. Once transaction order is agreed upon, execution results are mathematically determined, allowing consensus to focus only on ordering. While new blocks are being proposed and finalized, previous blocks are executed in parallel background processes.
Storage Architecture
Sei replaces traditional Merkle tree storage with a cryptographic accumulator system optimized for high throughput. It uses a flat key-value store to eliminate the overhead of tree-based structures. State root generation happens asynchronously, removing storage from the critical path of consensus.
A tiered storage model keeps recent data on high-performance SSDs while migrating historical data to more cost-effective solutions, optimizing both performance and economics.
Autobahn Consensus (Sei Giga)
For its upcoming Sei Giga upgrade, the network will introduce Autobahn — a consensus protocol designed to reduce traditional blockchain bottlenecks. Instead of relying on single block producers, its multi-proposer architecture allows every validator to continuously propose transactions in parallel "lanes."
Validators vote on data availability using compact cryptographic proofs rather than downloading full blocks, separating consensus from data dissemination. The protocol periodically commits a snapshot aggregating the latest proposals from all lanes, allowing multiple blocks to be finalized in a single consensus round.
The Sei Ecosystem
Since its mainnet beta launch in July 2024, the network's ecosystem has grown across several key categories: native DEXs designed for high-frequency trading, lending and borrowing protocols using SEI as collateral, liquid staking solutions, cross-chain bridges, NFT marketplaces, and gaming and social platforms built for real-time interaction.
For developers, the network provides Etherscan integration, MetaMask compatibility, oracle services, and security audit providers. To accelerate growth, the Sei Foundation has launched a $50 million Japan Ecosystem Fund targeting gaming and entertainment.
The Future of Sei Network
Sei Network's roadmap is focused on achieving Web2-level performance while maintaining core blockchain principles like decentralization and security. Key technical goals include the "Sei Giga" deployment targeting over 200,000 TPS, a multi-proposer consensus mechanism to enhance stability, and significant storage optimizations to support large-scale data growth.
In parallel, the strategy emphasizes ecosystem development through builder programs, research partnerships, and enterprise adoption initiatives — positioning Sei to serve applications that require both high throughput and the inherent security of a blockchain.