BNB Chain prepares a new Layer 1 blockchain for early 2027, with an ambition: to exceed 100,000 transactions per second and reduce block production to 200 milliseconds. The project, provision
BNB Chain prepares a new Layer 1 blockchain for early 2027, with an ambition: to exceed 100,000 transactions per second and reduce block production to 200 milliseconds. The project, provisionally called New L1, will operate alongside BNB Smart Chain without creating a new crypto. Changpeng Zhao (CZ), founder of Binance, supports this approach. The first experiments are already underway, but the public network is not yet available.
BNB Chain no longer relies solely on improving its current network. A technical documentation updated on October 22 presents a new Layer 1 blockchain designed to operate alongside BNB Smart Chain (BSC). This infrastructure is intended to host crypto applications requiring particularly fast transactions.
The project does not start from scratch. In January, BNB Chain had already sped up its network with the Fermi upgrade. Further optimizations then reduced block production time to 450 milliseconds.
The progress is measurable. According to the official roadmap published in July, BSC went from about 2,800 transactions per second during January benchmarks to 5,200 TPS in June 2026. The block finalization time in memory also decreased from 1,125 to 650 milliseconds.
BNB Chain now wants to take a new step. Rather than concentrating all applications on BSC, the ecosystem is preparing a separate network, more oriented toward high-frequency crypto trading, automated payments, and financial operations requiring low latency.
This second infrastructure will still maintain economic and technical links with BSC. Development is currently ongoing on a private test network. No public explorer or RPC endpoint open to developers has been announced yet. The exact launch date is also unknown. BNB Chain targets early 2027, following a public testing phase expected before the end of 2026.
Start your crypto adventure safely with OKXThis link uses an affiliate program.The technical objectives are particularly ambitious. New L1 is expected to handle more than 100,000 crypto transactions per second, with block production every 200 milliseconds and pre-confirmations around 20 milliseconds.
By comparison, the previously measured 5,200 TPS on BSC represent about nineteenth of this new target. However, test conditions differ. It would therefore be premature to consider the future network as 19 times faster than BSC under real conditions.
The new architecture notably relies on an improved version of Parlia, the consensus mechanism of BNB Chain. It plans for up to 64 validators, with BLS cryptographic signatures intended to facilitate their coordination.
Transaction processing must also evolve. On classic crypto blockchains, operations are generally ordered then executed in a process that can slow block production. New L1 aims to further separate these stages.
Validators will establish the order of transactions while executions can occur asynchronously. Another new feature: pre-confirmations. An application can quickly obtain a signed indication regarding the probable inclusion of its transaction. The announced delay is around 20 milliseconds.
However, caution: pre-confirmation does not mean finality. A pre-confirmed transaction is not necessarily executed or definitively validated. Some indications can still be revoked. This distinction matters for financial applications, particularly when a transaction involves guarantees or liquidations. Developers will therefore have to wait for results from the first public tests to assess the reliability of these mechanisms under heavy load.
The new network will not have its own token. This is one of the most important choices of the project. BNB will remain the native asset of both BSC and New L1. It will continue to be used for fee payments, staking, and governance.
On October 25, Changpeng Zhao praised this direction on X with a short phrase: “Multiple chains, one coin.” The idea is to develop multiple infrastructures while maintaining a single common crypto asset. This organization avoids immediately creating a second token economy, with its own emissions and distribution mechanisms.
BNB Chain also plans a native bridge between the two networks. Users will theoretically be able to move their assets from BSC to New L1 and vice versa. But this functionality is still under development.
The exact functioning of transfers, necessary delays, and protections against attacks will still need to be evaluated. This strategy could also change the role of BNB in the ecosystem. If New L1 attracts more applications, transactions and staking could increase the use of the BNB crypto. However, this does not guarantee an increase in its value.
Everything will depend on the actual adoption of the new network and the economic activity generated. CZ has also been interested for several months in using blockchain for automated operations. In May, he presented AI agents as a possible driver for crypto transactions. These software could multiply micropayments and settlements between applications without permanent human intervention. New L1 specifically seeks to host this type of activity.
Speed is not the only planned change. BNB Chain also wants to modify how applications access network capacity. The documentation notably mentions a mechanism called Multi-Lane.
It is designed to reserve part of the available resources for certain categories of operations, notably DeFi liquidations, oracles, and cross-blockchain transfers. The goal is to prevent a very large activity, such as a wave of exchanges on a crypto protocol, from monopolizing all available capacity.
However, these reservations will not guarantee that every transaction will be automatically executed. New L1 also plans to remove the traditional public mempool. In many blockchains, crypto transactions wait in an accessible space before their inclusion in blocks. Specialized actors can analyze this space to identify arbitrage opportunities or place their own transactions as a priority.
The new network plans to send more operations directly to block producers. This organization could reduce some forms of front-running, without eliminating all risks of transaction order manipulation.
Applications using artificial intelligence are also among the targeted uses. BNB Chain plans functions allowing sponsorship of fees, temporary use of some keys, and batching of multiple operations.
An AI agent could thus perform different financial tasks in an environment adapted to frequent transactions. Confidentiality also has a place in the work. Developers are preparing private transfers based on cryptographic proofs. Some information might be hidden when users choose this option. BNB Chain will thus have to turn these technical proposals into truly usable products before widely opening them to the crypto market.
The roadmap first foresees a public testnet before the end of 2026. This step will allow developers to assess network performance, crypto transaction costs, and validator behavior.
The mainnet could then arrive early 2027. No precise date has been announced. The first challenge concerns stability. Producing a block every 200 milliseconds requires rapid coordination between machines, even when located in different data centers.
Decentralization will also have to be monitored. The announced cap of 64 validators does not yet specify how many independent operators will actually participate in the network. The distribution of staking and hardware requirements will be important elements to examine.
Fees are another particular point. The documentation provides a base fee set to zero. This does not mean transactions will be free, since users will still have to pay priority fees. The calculation is also based on the declared gas limit for an operation, rather than on its actual consumption alone.
A poor estimation of needs could then cost developers more. The bridge between BSC and New L1 will also have to prove itself. Attacks on bridges have already caused considerable losses in the crypto industry.
The announced performance still remains to be demonstrated in real situations. BNB Chain had even mentioned, in its January roadmap, a long-term ambition reaching up to one million transactions per second. The 100,000 TPS threshold would thus be an intermediate stage. The ecosystem nevertheless has means to support future projects. In October 2025, YZi Labs, the investment company founded by CZ, announced a one billion dollar fund for BNB Chain developers.
