Fastest L2 block time, live across Arbitrum, Base, Optimism and 6 more
BlockchainsArbitrum
Leads332 ms
- p99
- 497 ms
- rank
- #1
- samples
- 329,956
Base
Trails1.96 s
- p99
- 2.98 s
- rank
- #4
- samples
- 41,338
Side by side OpenChainBench measurements. Identical layout, no editorial verdict, the live data leads. Each panel surfaces the aggregate plus the chain and region breakdowns when the underlying bench exposes them, straight from the Prometheus queries that drive the parent benchmark pages.
Optimistic rollup built on Nitro stack with a fast-finality sequencer. Sub-second block times (~250 ms) via a 250 ms default block interval, far below the 2 s OP Stack convention. 7-day fraud-proof window for L1 finality.
Coinbase-operated optimistic rollup on the OP Stack. 2-second sequencer block time, shared bridge with Optimism via the OP Superchain, fastest-growing L2 by TVL since 2024.
Arbitrum
Leads332 ms
Base
Trails1.96 s
Arbitrum
Trails131 ms
Base
Leads129 ms
Arbitrum
Trails$0.000666
Base
Leads$0.000212
Arbitrum
Trails$0.00403
Base
Leads$0.00120
A pair is published when all four conditions hold. Both providers run in the same OpenChainBench benchmark for at least seven consecutive days. Each provider has at least 1000 samples in the measurement window. The head to head query has observable third party search demand. Both providers have a public /products/[slug] page on OCB. The full pair ledger is versioned in the public repo so the methodology is externally verifiable.