Alpenglow aims to achieve block finality in approximately 150 milliseconds, enabling Solana to rival traditional Web2 internet infrastructure in terms of responsiveness.

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Anza researchers claimed that ‘Alpenglow will shatter both these latency bounds’ and the project expects it to reach actual finality in about 150 milliseconds, rivaling internet infrastructure.
Anza claims this could bring block processing times down to 100–150 milliseconds.