Sei finality time
As of November 3, 2026, Sei finality time is 0.27 s at the median (p50, 24h window), with 0.32 s at p90 and 0.37 s at p99. Sei ranks #2 of 18 chains measured on this benchmark.
Sei finalizes a block the moment it is committed, with no separate finalized tag. The figure, 0.27 s (p50, 24h), is the time from the block's header timestamp (nanoseconds) to its arrival on a `NewBlockHeader` subscription over the Tendermint WebSocket, already final. On Sei the header time read 0.2 to 0.3 s before arrival on 3 November 2026, inside one block interval of about 0.45 s, so it marks this block's proposal: the figure is proposal, votes, commit and delivery. Readings outside 0 to 60 s are dropped as clock skew.
How Sei compares
Live p50 over the last 24 hours across every chain on this benchmark, ranked lowest first.
Methodology, charts and the full ledger live on the Fastest L1 blockchain finality, live wall-clock measurement per chain page. Raw data: JSON endpoint.