Sei

SEI CMC #97 in the snapshot

An EVM-compatible smart-contract network that combines optimized validator agreement with parallel execution and state-storage changes intended to reduce transaction-processing delays.

Profile checked 14 Nov 2026Asset ranks captured 14 Nov 2026Snapshot & methodology ↗

01 / THE PURPOSE

What is Sei for?

Sei targets applications that benefit from responsive shared execution, including trading, payments, and interactive services. It seeks to improve several stages of a transaction’s path rather than treating block production alone as application performance.

02 / THE ARCHITECTURE

Three questions about the machinery.

How does it agree?

Consensus & security

Its Twin Turbo design optimizes a Tendermint-style Byzantine-fault-tolerant process used by stake-backed validators. Preparation and execution can overlap with voting, but committed results still require the network’s agreement rules.

Where do instructions run?

Execution model

The parallelization engine runs non-conflicting transactions concurrently. It estimates state access, checks actual conflicts, and re-executes work where necessary to preserve the result expected from the agreed transaction order.

What is the token for?

SEI in the system

SEI pays network gas and participates in staking and governance. A token traded by an application is distinct from SEI, even though the application uses the network’s execution and consensus.

03 / THE DESIGN CHOICES

What comes with the design?

Each architecture makes choices about security, performance, coordination, and who can participate.

Highly contested application state creates conflicts, reducing the benefit of parallel execution for that workload.
Low confirmation latency depends on validator communication and hardware as well as the application’s own access patterns.
EVM compatibility does not remove contract bugs, price manipulation, or cross-chain asset risks from an application.

04 / IN PRACTICE

Follow one use.

Independent token transfers can run concurrently while several swaps touch the same pool. The execution engine resolves conflicting pool updates, and validators commit one consistent outcome rather than allowing each parallel worker to choose its own balance.

05 / CHECK THE EXPLANATION

Sources & snapshot.

Network descriptions use the references below. The CoinMarketCap snapshot determines which assets are in scope and their captured rank; it does not assess the quality of a network.

Twin Turbo Consensus Sei Docs
Sei parallelization engine Sei Docs
Sei developer documentation Sei Docs
CoinMarketCap top 100 snapshot Captured 14 Nov 2026 · See the complete scope audit
Sei (SEI) on CoinMarketCap Captured asset rank #97

Profile checked 14 Nov 2026. Network designs and ranked positions can change.