Tether-Backed Blockchain ‘Stable’ Launches Phase 1, Puts USDT at the Core of Gas and Settlement

A new Layer 1 blockchain named Stable is making its debut, backed by crypto exchange Bitfinex and powered by Tether’s widely used USDT stablecoin. Announced on Tuesday, Stable aims to redefine how stablecoins function at the infrastructure level—by using USDT directly as the native token for gas and settlement fees.

Described by the team as a "stablechain," Stable’s mission is to eliminate some of the most persistent pain points in blockchain transactions: high fees, slow settlement times, and clunky user experiences. The project is positioning itself as a purpose-built alternative to traditional Layer 1s, optimized specifically for stablecoin transactions.

“Stable is designed to unlock the true potential of stablecoins,” the team stated. “The goal is simple: make transactions faster, cheaper, and more reliable for everyone.”

Consensus - Stable

Stable

What Makes Stable Different?

Stable's network architecture includes sub-second block finality and full EVM compatibility, allowing it to work seamlessly with existing Ethereum-based tools and smart contracts. One standout feature is its integration with USDT0, a decentralized, LayerZero-based token pegged to Tether’s USDT. Transactions using USDT0 will be completely gas-free.

The chain also introduces several enterprise-focused innovations:

• Guaranteed blockspace for institutional use
• Batch processing for high-volume operations
• Confidential transfers that balance privacy with regulatory compliance
• A user-friendly Stable Wallet with social login, credit card support, and human-readable wallet aliases

These features are part of Phase 1 of Stable’s multi-stage roadmap. In Phase 2, the project will roll out optimistic parallel execution to further boost throughput and introduce more features tailored to businesses. Phase 3 will focus on refining the network’s consensus mechanism and delivering developer tools and SDKs to spur ecosystem growth.

Though details about the development team remain sparse, Tether CEO Paolo Ardoino publicly congratulated Stable’s builders last month as the project exited stealth mode. Stable is also supported by Bitfinex, which previously led a $3.5 million round in Plasma—a related effort building a USDT-centric EVM-compatible sidechain.

Stablecoin Infrastructure, Reimagined

With USDT already dominating the stablecoin market—boasting a circulating supply of 157.7 billion tokens—Stable’s emergence could significantly shift how stablecoins are used in everyday transactions and enterprise applications alike. The timing is also notable, as U.S. lawmakers inch closer to passing the GENIUS Act, a bill that could set national standards for stablecoin regulation.

According to the project’s documentation, Stable is “building a stablecoin landscape from the ground up,” aiming to foster global financial inclusion and more resilient transaction systems.