article

Polygon vs COTI: Scaling vs Privacy - Which Ethereum Layer 2 Matters More?

Nahid
Published: June 18, 2025
(Updated: January 4, 2026)
3 min read
Polygon vs COTI: Scaling vs Privacy - Which Ethereum Layer 2 Matters More?

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Polygon makes Ethereum faster. COTI makes it private. Both are shaping what’s next.

Ethereum is no stranger to Layer 2s. As the network that pioneered smart contracts and decentralized finance (DeFi), its scaling challenges have been well documented. Enter Polygon, a name synonymous with faster transactions and lower fees. For years, Polygon has been one of the leading Ethereum L2s, optimizing for speed and throughput. But as Web3 grows up, it’s becoming clear that scaling is only half of the puzzle. Privacy, confidentiality at the computational level is starting to matter just as much. And that’s where COTI comes in.

Let’s dive into what makes these two Ethereum-compatible solutions different, why they don’t really compete, and why together they might shape what’s next.

Polygon: Ethereum’s Scaling Engine

Polygon has become a household name for developers looking to make Ethereum faster and cheaper. Originally launching with its Proof-of-Stake (PoS) sidechain, it has since expanded into a broader ecosystem with zkEVMs, Polygon CDK, and even integration into major brands like Nike and Starbucks.

Achievements and Strengths:

  • Massive TVL (Total Value Locked)
  • Hundreds of projects spanning DeFi, NFTs, and gaming
  • Active partnerships with global enterprises
  • Heavy emphasis on scalability and low transaction costs

Polygon excels at one thing: getting Ethereum to scale horizontally. More transactions, lower fees, higher throughput.

COTI: Ethereum’s Confidentiality Layer

Honestly, COTI isn’t here to replace Polygon. It’s here to solve a different problem entirely: Privacy. As Shahaf Bar-Geffen, CEO of COTI, puts it: 

“Privacy isn’t just a feature but an essential component of blockchain’s future.”

While Polygon focuses on throughput, COTI V2 specializes in privacy-preserving smart contracts using Multi-Party Computation (MPC) powered by Garbled Circuits. It’s giving users selective disclosure. You decide what to reveal, to whom, and when. In benchmark tests, this approach has delivered operations that run up to 1,800x-3000x faster and use 250x fewer resources than typical ZK-based systems. That’s a paradigm shift.

Achievements and Strengths:

  • Integrated with major DeFi projects like Carbon DeFi and PriveX
  • Fastest privacy layer benchmarks in Web3 today
  • Focused on compliant privacy

Where They Stand Today: Two Sides of the Same Coin

Polygon and COTI are both Ethereum-compatible, but they solve different problems.

Polygon is the scaling engine. It handles bulk transaction volume and brings mainstream users into crypto by making applications fast and cheap. COTI is the privacy engine. It ensures that sensitive computations like algorithmic trading strategies, personal identity data, or confidential AI operations stay secure, compliant, and private by default.

Polygon makes Ethereum usable. COTI makes Ethereum confidential.

Why They Complement, Not Compete

Perhaps we could dive deeper into different use cases that both can cater to and tilt a bit more towards how COTI is the missing piece for the existing ecosystem of Layer 2s.

Imagine:

  • Polygon for public marketplaces
  • COTI for confidential trading
  • Polygon for gaming and NFTs
  • COTI for enterprise DeFi, private data storage, and regulated financial applications

With Polygon, everyone sees the surface. With COTI, the logic stays hidden.

Final Thoughts: Privacy and Scale Need to Coexist

Polygon and COTI represent two critical pillars for Ethereum’s future. Choosing between them is like choosing between highways and privacy screens so you don’t have to. They solve different problems.

In a world where compliance and user protection are becoming non-negotiable, privacy layers like COTI are necessary. Polygon scales Ethereum for the masses. COTI scales Ethereum for the real world. The next era of Web3 will be built on speed, trust, confidentiality, and usability combined. And that’s exactly where COTI fits.

READ MORE : COTI vs. Mind Network: Why Garbled Circuits May Outrun FHE in the Privacy Race

About the Project


About the Author

Nahid

Nahid

Nahid is a contributor at CotiNews from Bangladesh, covering developments across the COTI ecosystem. His work focuses on breaking down complex updates, technical concepts, and ecosystem news into clear, accessible stories for a wider audience.

Disclaimer

The views and opinions expressed in this article are those of the authors and do not necessarily reflect the official stance of CotiNews or the COTI ecosystem. All content published on CotiNews is for informational and educational purposes only and should not be construed as financial, investment, legal, or technological advice. CotiNews is an independent publication and is not affiliated with coti.io, coti.foundation or its team. While we strive for accuracy, we do not guarantee the completeness or reliability of the information presented. Readers are strongly encouraged to do their own research (DYOR) before making any decisions based on the content provided. For corrections, feedback, or content takedown requests, please reach out to us at

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