Injective vs OP Mainnet

Injective is a Cosmos‑SDK Layer‑1 with on‑chain order books, zero‑gas trading and a frequent batch auction that mitigates MEV. Its built‑in Ethereum bridge lets users bring ERC‑20s without custodial risk, and the WasmX module supports CosmWasm smart contracts. INJ holders can stake or participate in governance that controls upgrades like the 2024 Volan hard fork which added liquid staking.

OP Mainnet (Optimism) is an optimistic rollup that batches transactions to Ethereum and relies on fraud proofs submitted during a seven‑day challenge window. The Bedrock upgrade in 2023 cut L1 calldata costs by 40 % and introduced multi‑proof modularity. ‘RetroPGF’ rounds redistribute protocol revenue to public‑goods builders, governed by the OP token‑holder Collective.