Manta vs Sei

Manta Pacific is a modular zk‑EVM Layer‑2 that stores rollup data on Celestia DA and uses universal circuits to keep prover costs low. Users can deploy privacy‑preserving smart contracts with built‑in zero‑knowledge widgets for shielding balances. The 2025 ‘Marlin’ release adds Account Abstraction and native bridges to Polkadot’s parachain ecosystem.

Sei is a parallelised Cosmos‑SDK Layer‑1 optimized for order‑book exchanges, using Twin‑Turbo consensus to reach 300–400 ms finality. Its built‑in matching engine lets dApps compose on a shared liquidity layer, and fee markets are denominated in SEI with bulk‑order discounts. The ‘V2’ upgrade adds EVM compatibility via SeiDB and WASM contracts side‑by‑side.