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As an Ethereum layer 2, Arbitrum has its own architecture for gas fees and how users pay for transaction inclusion on the network.

Base Fee per Gas

On Arbitrum, the base fee per gas is determined at the block level and adjusted based on demand and network congestion. A network-level minimum exists and has evolved throughout the chain’s history. The Arbitrum DAO controls network parameters, and previous proposals have adjusted the base fee. The base fee per block should be set manually as it affects blocks at the time of creation before being produced.
  • ArbOS 51 Dia: Increased the minimum base fee from 0.01 Gwei per gas to 0.02 Gwei per gas at block 419260699.