Cronos has completed a major performance upgrade to its EVM mainnet, achieving a remarkable 10x reduction in block time and entering the sub-second era. This enhancement significantly boosts network responsiveness and throughput, paving the way for high-performance decentralized applications.
As of July 2025, the network upgrade is live, reducing Cronos EVM’s average block interval from around 5.6 seconds to under one second. This positions Cronos as one of the fastest, most compatible, low-latency, and scalable Ethereum Virtual Machine (EVM) chains available. With instant finality, Cronos now ranks among the top 10 fastest blockchains globally, enabling real-time applications in DeFi, AI, and payments.
How Cronos Achieved Sub-Second Performance
The leap in speed is powered by recent scalability innovations, including BlockSTM, a parallel execution engine introduced in the Pallene upgrade. This technology allows multiple transactions to be processed simultaneously within each block. The latest optimization focuses on increasing block production frequency, resulting in faster finality and smoother user interactions.
These combined upgrades deliver several key benefits:
- Increased overall transaction throughput (TPS)
- Near-instant responsiveness for DeFi, AI, and payment applications
- Improved developer experience for high-frequency applications
- Reduced latency for real-time, on-chain interactions
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Leadership and Vision for Ultra-Fast Applications
Mirko Zhao, Cronos Labs Lead and Head of Product & Engineering, stated, “By unlocking sub-second performance, we’re not just making the network faster — we’re enabling a new class of ultra-fast blockchain applications. This upgrade reinforces our long-term commitment to developer experience and performance at scale.”
This upgrade is part of Cronos’ broader roadmap focused on performance, affordability, and readiness for AI agents. Prior to this achievement, Cronos implemented a 10x base gas fee reduction in June, making the network more accessible to users and developers alike.
Real-World Adoption and Innovative Use Cases
Cronos has also made significant strides in real-world adoption. In partnership with Crypto.com, it became the first blockchain to support direct funding of a prepaid card with cryptocurrency. A supporting feature, Auto-Harvest, automates the conversion of DeFi rewards into fiat top-ups, seamlessly bridging on-chain activity with everyday payments.
Understanding the Cronos Ecosystem
Cronos is a leading blockchain ecosystem that collaborates with Crypto.com and over 500 application developers and contributors, representing an addressable user base of more than 100 million people worldwide. Its mission is to make it easy and safe for the next billion crypto users to adopt self-custody in Web3, with a strong focus on Decentralized Finance and Gaming.
The Cronos universe includes three main chains:
- Cronos EVM: A leading Ethereum-compatible blockchain built on the Cosmos SDK
- Cronos POS: A prominent Cosmos chain for payments and NFTs
- Cronos zkEVM: A new high-performance layer 2 network secured by Ethereum
Cronos ranks among the top 15 blockchain ecosystems, with over $6 billion in user assets. Since its inception, it has securely settled more than 100 million transactions. Transaction fees are paid in Cronos ($CRO), a well-established cryptocurrency.
Cronos is supported by Cronos Labs, a Web3 startup accelerator focused on DeFi, GameFi, and the ongoing development of the Cronos ecosystem.
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Frequently Asked Questions
What does sub-second block time mean for users?
Sub-second block time means transactions are confirmed in less than a second, dramatically reducing wait times and enabling real-time applications like instant payments and high-frequency trading.
How does Cronos compare to other fast blockchains?
With this upgrade, Cronos now ranks among the top 10 fastest blockchains globally, offering Ethereum compatibility with significantly improved speed and lower latency compared to many competitors.
What is BlockSTM technology?
BlockSTM is a parallel execution engine that allows multiple transactions to be processed simultaneously within each block, significantly increasing network throughput and efficiency.
Can developers build high-frequency applications on Cronos?
Yes, the sub-second block time and improved throughput make Cronos an ideal platform for developing high-frequency applications in DeFi, AI, and real-time payments.
How does Cronos ensure security with such fast block times?
Cronos maintains security through its robust ecosystem design, including its Ethereum-secured zkEVM layer 2 solution and the established security of the Cosmos SDK framework.
What makes Cronos different from other EVM-compatible chains?
Cronos stands out through its combination of Ethereum compatibility, sub-second finality, low transaction fees, and unique features like direct fiat integration through its Crypto.com partnership.