Sui (SUI) is a Layer 1 blockchain launched in 2023 by former Meta (Facebook) engineers, built for speed and a smoother experience than older chains. Its standout technical idea is an 'object-centric' design that lets independent transactions run in parallel (many at once) instead of one after another, giving sub-second finality and very low fees. It's programmed in 'Move', a language originally created at Meta and designed to make on-chain assets safer and harder to exploit. SUI is the token used for fees, staking (securing the network for rewards) and governance. Total supply is capped at 10 billion, with a large portion still unreleased.
Where it stands today: Sui has grown into a top-tier newer chain, with over a thousand active developers and a live DeFi and gaming ecosystem (protocols like Cetus, Suilend and NAVI), plus its own dollar stablecoin (USDsui, issued via a Stripe subsidiary) for payments. DeFi value locked sits in the mid-hundreds of millions — real but still small next to Ethereum or Solana. Its 2026 roadmap leans into AI, gaming and better tools for Move developers. The catch: only around 40% of tokens are circulating, with the rest unlocking gradually through 2030, so scheduled unlocks are a recurring overhang. So today it's a fast, well-engineered chain with genuine traction but still proving it can pull developers away from bigger rivals.