Sei

Sei is a Layer 1 designed around trading throughput, combining parallel transaction execution with EVM compatibility. Its design decisions all follow from one premise: that financial applications fail on latency and contention long before they fail on anything else.

Parallel execution where transactions do not conflict

Transactions touching separate state can run simultaneously rather than queueing behind one another. Since most trading activity involves different markets and different accounts, a large share of a block can process in parallel — the constraint only binds when transactions genuinely contend for the same state.

Ordering designed against front-running

The chain incorporates ordering mechanisms intended to reduce the advantage available from observing pending transactions and inserting ahead of them. On chains where ordering is a free-for-all, that advantage is extracted from ordinary traders continuously through worse execution.

EVM compatibility lowers the migration cost

Supporting the Ethereum virtual machine means existing contracts and tooling transfer without rewriting. For a newer chain this materially changes the adoption calculus — competing on performance is far easier than also asking developers to learn a new language.

Performance concentrates validation

Keeping pace with a high-throughput chain requires more capable hardware, which raises the practical floor for running a validator. That concentrates participation among better-resourced operators. It is the standard trade for base-layer performance and worth stating plainly.

What to weigh

Sei's design is coherent for its target use, and its competition is intense: several chains now offer parallel EVM execution, and the differentiator will be which attracts sustained application activity rather than which benchmarks fastest.