L1 Validators vs. Ethereum L2’s: Cost Comparison for Chain Operators

Fri, 12 Sep 2025 20:24:03 +0000

This report compares the operational on-chain costs of launching an alternative Layer-1 (“alt-L1”) blockchain versus building an Ethereum Layer-2 (L2) with respect to validator rewards, data availability (DA), and zero-knowledge (ZK) proof costs. Alt-L1s support security via decentralized validators: they incur costs through token issuance and sharing transaction fees or MEV. These validator expenditures vary greatly depending on the chain’s token model and price. L2s, in contrast, inherit Ethereum’s settlement security; their major on-chain expense is paying for data posted to Ethereum (data availability) plus, if using ZK rollups, additional proof generation costs.

L2's on Ethereum Market Research Center

L1 Validators vs. Ethereum L2’s: Cost Comparison for Chain Operators