OpenChainBench
Full benchmark: Fastest L2 block time, live across Robinhood, Arbitrum, Base and 7 more
BlockchainsBase

Base block time

As of July 31, 2026, Base block time is 1.93 s at the median (p50, 24h window), with 2.78 s at p90 and 2.98 s at p99. Base ranks #4 of 10 chains measured on this benchmark.

Base block time is 1.93 s (p50, 24h). Base is operated by Coinbase on the OP Stack and inherits its 2 second sequencer cadence; Coinbase has publicly tested a Flashblocks pre-confirmation path at 200 ms but the canonical `newHeads` stream still emits one block every 2 s. Settlement posts to Ethereum via EIP-4844 blobs. Measured live by subscribing to `newHeads` on the public Base sequencer WebSocket and computing T(N+1) minus T(N) in milliseconds.

How Base compares

Live p50 over the last 24 hours across every chain on this benchmark, ranked lowest first.

  1. #1Robinhood Chain78 ms
  2. #2Arbitrum One327 ms
  3. #3Mantle1.78 s
  4. #4Base1.93 s
  5. #5Optimism1.97 s
  6. #6Taiko1.98 s
  7. #7Blast1.98 s
  8. #8zkSync Era2.80 s
  9. #9Scroll4.81 s
  10. #10Linea5.74 s

Methodology, charts and the full ledger live on the Fastest L2 block time, live across Robinhood, Arbitrum, Base and 7 more page. Raw data: JSON endpoint.