Arbitrum vs Berachain

Arbitrum One and Nova are optimistic rollups using Nitro fraud proofs that compress transactions into calldata submitted to Ethereum. The Orbit toolkit lets projects deploy their own Arbitrum Orbit chains with configurable permissions. ARB token governance manages the 3 000‑plus validator whitelist and a 1 billion‑dollar ecosystem grant fund.

Berachain is an EVM‑compatible Layer‑1 built with the Cosmos SDK that introduces Proof‑of‑Liquidity (PoL), rewarding validators based on the liquidity they provide rather than just stake weight. Its tri‑token model splits governance (BGT), block rewards (BERA) and stable value (HONEY) to align incentives between traders and stakers. The chain launched public testnet #3 ‘Berenodes’ in February 2025 and plans mainnet with native USDC support later in the year.