Live on Unichain: Flashblocks 200ms Sub-Blocks

Posted: August 14, 2025 | Effective: August 14, 2025

Unichain now confirms transactions every 200 milliseconds, making it one of the fastest chains available.

This makes Unichain the first chain to pair sub-second latency with provable ordering, delivering the speed users expect and integrity developers can build on.

Flashblocks on Unichain were designed by Uniswap Labs and Flashbots to run inside Trusted Execution Environments (TEEs).

Learn more about Flashblocks and stay updated with the latest Unichain developments.