Stellar finality time
As of September 10, 2026, Stellar finality time is 7.1 s at the median (p50, 24h window), with 11 s at p90 and 18 s at p99. Stellar ranks #4 of 10 chains measured on this benchmark.
Stellar uses the Stellar Consensus Protocol, a federated Byzantine agreement that reaches deterministic finality at every ledger close. p50 sits at 7.1 s (24h), aligned with the documented 5-second close interval. No probabilistic confirmation, no reorg window. Measured via the Horizon `/ledgers?cursor=now&order=asc` SSE stream, recording wall-clock T1 on first ledger sight and T2 on the next SCP-final commit.
How Stellar 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 across 11 chains page. Raw data: JSON endpoint.