BNB Chain Targets 100,000 Transactions per Second for New L1 Network
Key Facts
BNB Chain is targeting throughput of more than 100,000 transactions per second for its new New L1 network, with block finality in less than one second, according to its roadmap for the second half of 2026. The company describes the figure as a design target based on simultaneous improvements to consensus, parallel execution and LtHash-based storage. It is not performance measured on a public network: official documents say the network remains in a multi-validator internal development phase. No public testnet or public endpoint is currently available, according to developer documentation. The roadmap sets the testnet launch for the end of 2026, followed by the mainnet launch in early 2027.
Published development-environment parameters set the block interval at 200 milliseconds, while the documentation estimates the pre-confirmation signal at about 20 milliseconds. The signal is a validator-signed promise to order and include a transaction, but it is revocable and does not mean execution has succeeded or the transaction is final. This separates the speed of the initial notification from the roadmap’s target of block finality in less than one second. BNB Chain says the network is currently unstable and may undergo breaking changes. The published technical figures therefore remain part of the development-environment specifications, not operating results on a public network.
BNB remains the native asset used to pay gas fees and for staking on New L1, and the network does not plan to issue a separate token, according to the BNB Chain forum. But a link between the new network and BNB Smart Chain is not yet available; network information says the bridge is still under development. There is still no public endpoint or hosted explorer, and the chain ID has not been finalized. These specifications give BNB a shared role in the ecosystem, while asset transfers between the networks remain dependent on completion of the bridge. This underscores that the announced economic model does not mean public-use tools are ready.
The architecture includes TxStream, which routes transactions directly to the block leader rather than exposing them in a public transaction pool. A BNB Chain technical official told The Block that the mechanism “does not eliminate MEV; nothing does, but it makes prevalent attacks impractical by design.” The official explained that block leaders rotate every 200 milliseconds and transaction ordering is fixed before transactions are revealed. The coverage says this approach could make some forms of front-running, including common attacks, more difficult, without eliminating the extractable value from transactions. The documentation also presents Multi-Lane as reserved gas capacity for latency-sensitive transaction classes, but it does not guarantee the inclusion of any particular transaction.
New L1 is being developed alongside measurable improvements to BNB Smart Chain in the first half of 2026. BSC’s throughput benchmark rose from about 2,800 transactions per second in January to 5,200 in June, while the block interval fell from 750 to 450 milliseconds. Memory finality also declined from 1,125 to 650 milliseconds over the same period, according to the BNB Chain roadmap. The company attributes some of the improvements to changes in the client architecture, including compatibility between the Rust client and Reth v2.0, which it said delivered a twofold performance improvement. The second-half roadmap targets another doubling of mainnet throughput as part of a longer-term plan for a tenfold improvement across the BNB Chain ecosystem.
New L1 reflects an evolution in BNB Chain’s technical ambitions compared with an initial concept the company published in July 2025, which targeted more than 20,000 transactions per second and finality below 150 milliseconds for the new chain. On BSC’s performance, the company said the network processed as much as five trillion gas units per day in 2025 and recorded a peak of 31 million daily transactions on October 5 of that year without stopping or going offline. A technical official also described New L1 as aiming for a centralized-exchange-like trading experience while preserving self-custody, but acknowledged that centralized exchanges remain faster for high-frequency trading than a colocated data center. Binance founder Changpeng Zhao responded to the plan with the phrase “Multiple chains, one coin,” according to Crypto.news. The nearest specified date in the update schedule is for the Jenner upgrade on the Chapel network, scheduled for testing on October 28, 2026; the company said mainnet timing will be announced separately.